Dinosaur Park Formation

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Dinosaur Park Formation
Stratigraphic range: Campanian, 76.9–75.8 Ma

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Dinosaur Park Fm.jpg
Dinosaur Park Formation exposed along the Red Deer River in Dinosaur Provincial Park, southeastern Alberta, Canada.

TypeGeological formation
Unit ofBelly River Group
UnderliesBearpaw Formation
OverliesOldman Formation
Lithology
Primary
Sandstone (lower)
Mudstone and siltstone (upper)
Other
Bentonite and coal
Location
Region
 Alberta
Country
 Canada
Type section
Named forDinosaur Provincial Park
Named byEberth, D.A. and Hamblin, A.P., 1993.[2][3]

The Dinosaur Park Formation is the uppermost member of the Belly River Group (also known as the Judith River Group), a major geologic unit in southern Alberta. It was laid down during the Campanian stage of the Late Cretaceous epoch between 76.9 and 75.8 million years ago.[1] It was deposited in alluvial and coastal plain environments, and it is bounded by the nonmarine Oldman Formation below it and the marine Bearpaw Formation above it.[4]


The Dinosaur Park Formation contains dense concentrations of dinosaur skeletons, both articulated and disarticulated, which are often found with preserved remains of soft tissues. Remains of other animals such as fish, turtles, and crocodilians, as well as plant remains, are also abundant.[5] The formation has been named after Dinosaur Provincial Park, a UNESCO World Heritage Site where the formation is well exposed in the badlands that flank the Red Deer River.[3]




Contents





  • 1 Geological setting


  • 2 Biostratigraphy


  • 3 Amphibians


  • 4 Dinosaurs

    • 4.1 Ornithischians

      • 4.1.1 Ankylosaurs


      • 4.1.2 Ceratopsians


      • 4.1.3 Ornithopods


      • 4.1.4 Pachycephalosaurs



    • 4.2 Theropods

      • 4.2.1 Ornithomimids


      • 4.2.2 Oviraptorosaurs


      • 4.2.3 Paravians


      • 4.2.4 Tyrannosaurs




  • 5 Fish


  • 6 Invertebrates


  • 7 Mammals


  • 8 Plants

    • 8.1 Plant body fossils


    • 8.2 Palynomorphs



  • 9 Other reptiles

    • 9.1 Choristoderes


    • 9.2 Crocodylians


    • 9.3 Lizards


    • 9.4 Plesiosaurs


    • 9.5 Pterosaurs


    • 9.6 Turtles



  • 10 Timeline of new taxa


  • 11 See also


  • 12 Footnotes


  • 13 References




Geological setting




Restoration of the megafaunal dinosaurs of the Dinosaur Park Formation. From left to right: Chasmosaurus, Lambeosaurus, Styracosaurus, Scolosaurus, Prosaurolophus, Panoplosaurus, and a herd of Styracosaurus in the background


The Dinosaur Park Formation is composed of sediments that were derived from the erosion of the mountains to the west. It was deposited on an alluvial to coastal plain by river systems that flowed eastward and southeastward to the Bearpaw Sea, a large inland sea that was part of the Western Interior Seaway. That sea gradually inundated the adjacent coastal plain, depositing the marine shales of the Bearpaw Formation on top of the Dinosaur Park Formation.[4]


The Dinosaur Park Formation is about 70 metres (230 ft) thick at Dinosaur Park. The lower portion of the formation was laid down in fluvial channel environments and consists primarily of fine- to medium-grained, crossbedded sandstones. The upper portion, which was deposited in overbank and floodplain environments, consists primarily of massive to laminated, organic-rich mudstones with abundant root traces, and thin beds of bentonite. The Lethbridge Coal Zone, which consists of several seams of low-rank coal interbedded with mudstones and siltstones, marks the top of the formation.[4]


The sediments of the Dinosaur Park Formation are similar to those of the underlying Oldman Formation and they were originally included in that formation. The two formations are separated by a regional disconformity, however, and are distinguished by petrographic and sedimentologic differences. In addition, articulated skeletal remains and bonebeds are rare in the Oldman Formation but abundant in the Dinosaur Park Formation.[3][4]



Biostratigraphy


The Dinosaur Park Formation can be divided into at least two distinct faunas. The lower part of the formation is characterized by the abundance of Corythosaurus and Centrosaurus. This group of species is replaced higher in the formation by a different ornithischian fauna characterized by the presence of Lambeosaurus and Styracosaurus. The appearance of several new, rare species of ornithischian at the very top of the formation may indicate that a third distinct fauna had replaced the second during the transition into younger, non-Dinosaur Park sediments, at the same time an inland sea transgresses onto land, but there are fewer remains here. An unnamed pachyrhinosaur, Vagaceratops irvinensis, and Lambeosaurus magnicristatus may be more common in this third fauna.[6][7]


The timeline below follows a synthesis presented by Fowler (2016)[1] with additional information from Arbour et al. 2009,[8] Evans et al. 2009, and Penkalski, 2013.[9] Megaherbivore Assemblage Zones (MAZ) follow data presented by Mallon et al., 2012.[10]



Stegoceras validumUnescoceratops koppelhusaeLambeosaurus magnicristatusLambeosaurus lambeiCorythosaurus casuariusParasaurolophusParasaurolophus walkeriProsaurolophus maximusGryposaurusGryposaurus notabilisPachyrhinosaurinaeStyracosaurus albertensisCentrosaurus apertusVagaceratops irvinensisChasmosaurus russelliChasmosaurus belliChasmosaurus priscusMercuriceratops gemini


Amphibians


Remains of the following amphibians have been found in the formation:[11]


Albanerpetontidae (extinct, salamander-like amphibians)


  • Albanerpeton gracilis

Caudata (salamanders)


  • Habrosaurus prodilatus

  • Lisserpeton

  • Opisthotriton kayi

  • Scapherpeton tectum

  • unnamed caudatan

  • 2 indeterminate caudatans

Salienta (frogs)


  • 2 unnamed salientans


  • Tyrrellbatrachus brinkmani[12]


  • Hensonbatrachus kermiti[13]


Dinosaurs


Remains of the following dinosaurs have been found in the formation:[8][14]



Ornithischians


Remains of the following Ornithischians have been found in the formation:[15]



Ankylosaurs

































































Ankylosaurs reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Anodontosaurus



A. inceptus






An ankylosaurine ankylosaurid.




Dyoplosaurus



D. acutosquameus




Lower, 76.5Ma ago[8]




An ankylosaurine ankylosaurid.




Edmontonia



E. rugosidens




Lower, 76.5-75.9Ma ago[8]




A nodosaurine nodosaur.



Edmontonia dinosaur.png


Euoplocephalus



E. tutus




Lower to Middle, ~76.4-75.6Ma[9]




An ankylosaurine ankylosaurid.



Euoplocephalus BW.jpg


Panoplosaurus



P. mirus




Middle, 75.6Ma ago[8]



"Partial skeleton with complete skull, osteoderms, additional isolated teeth, postcranial elements, osteoderms."[16]



A nodosaurine nodosaurid.



Panoplosaurus 055.JPG


Platypelta



P. coombsi




Lower, 77.5-76.5 MA[17]




An ankylosaurine ankylosaurid




Scolosaurus



S. cutleri




Lower, 76.5Ma ago or more[9]




An ankylosaurine ankylosaurid briefly thought to be synonymous with Euoplocephalus. It possibly came from the upper layers of the underlying Oldman Formation.[18]



Scolosaurus feeding.png


S. thronus






An ankylosaurine ankylosaurid.




Ceratopsians


An unnamed Pachyrhinosaurus-like taxon has been recovered from the formation.












Color key








Taxon

Reclassified taxon

Taxon falsely reported as present

Dubious taxon or junior synonym

Ichnotaxon

Ootaxon

Morphotaxon


Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.












































































Ceratopsians reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Centrosaurus



C. apertus




Middle, 76.2-75.5Ma ago[8]



"[Fifteen] skulls, several skeletons, all adult; abundant bone-bed material with rare juveniles and subadults."[19]C. nasicornis may be a synonym.



A centrosaurine ceratopsid.



Centrosaurus BW.jpg


Chasmosaurus



C. belli




Middle, 76-75.5Ma ago[8]



"[Twelve] skulls, several skeletons."[19]



A chasmosaurine ceratopsid.



Chasmosaurus BW.jpg


C. russelli




Lower, 76.5-76Ma ago[8]



"[Six] complete or partial skulls."[20]




Mercuriceratops



M. gemini[21]




Lower, ~77Ma ago[21]



"one apomorphic squamosal"[21]



A chasmosaurine ceratopsid.



Mercuriceratops NT small.jpg


Monoclonius



M. lowei






A dubious centrosaurine ceratopsid.




Pentaceratops[22]



P. aquilonius[22]




Uppermost, 74.8 MA[22]



two frill fragments[22]



A dubious chasmosaurine ceratopsid that may be the same species as Spiclypeus shipporum.[23]




Spinops[24]



S. sternbergorum[24]




Lower, 76.5Ma[24]



"partial parietal bone, partial dentary, unidentifiable limb fragments, partial skull, and partial right squamosal."[24]



A centrosaurine ceratopsid.It may actually be from the upper Oldman Formation.[24]



Spinops NT.jpg


Styracosaurus



S. albertensis




Upper, 75.5-75.2Ma ago[8]



"[Two] skulls, [three] skeletons, additional material in bone beds."[19]



A centrosaurine ceratopsid.



Styracosaurus BW.jpg


Unescoceratops



U. koppelhusae





Partial lower jaw[25]



A leptoceratopsid thought to have been between one and two meters long and less than 91 kilograms. Its teeth were the roundest of all leptoceratopsids.




Vagaceratops



V. irvinensis




Upper, 75Ma ago[8]



"[Three] skulls, skeleton lacking tail."[20]



A chasmosaurine ceratopsid species previously classified as a species of Chasmosaurus.[26]



Vagaceratops NT.jpg


Ornithopods


At least one indeterminate hypsilophodont specimen has been recovered from the formation.


In a 2001 review of hadrosaur eggshell and hatchling material from the Dinosaur Park Formation, Darren H. Tanke and M. K. Brett-Surman concluded that hadrosaurs nested in both the ancient upland and lowlands of the formation's depositional environment.[27]
The upland nesting grounds may have been preferred by the less common hadrosaurs, like Brachylophosaurus or Parasaurolophus. However, the authors were unable to determine what specific factors shaped nesting ground choice in the formation's hadrosaurs. They suggested that behavior, diet, soil condition, and competition between dinosaur species all potentially influenced where hadrosaurs nested.[28]


Sub-centimeter fragments of pebbly-textured hadrosaur eggshell have been reported from the Dinosaur Park Formation. This eggshell is similar to the hadrosaur eggshell of Devil's Coulee in southern Alberta as well as that of the Two Medicine and Judith River Formations in Montana, United States.[29] While present, dinosaur eggshell is very rare in the Dinosaur Park Formation and is only found in two different microfossil sites.[27] These sites are distinguished by large numbers of pisidiid clams and other less common shelled invertebrates like unionid clams and snails. This association is not a coincidence as the invertebrate shells would have slowly dissolved and released enough basic calcium carbonate to protect the eggshells from naturally occurring acids that otherwise would have dissolved them and prevented fossilization.[29]


In contrast with eggshell fossils, the remains of very young hadrosaurs are actually somewhat common. Darren Tanke has observed that an experienced collector could actually discover multiple juvenile hadrosaur specimens in a single day. The most common remains of young hadrosaurs in the Dinosaur Park Formation are dentaries, bones from limbs and feet, as well as vertebral centra. The material showed little or none of the abrasion that would have resulted from transport, meaning the fossils were buried near their point of origin.[30] Bonebeds 23, 28, 47, and 50 are productive sources of young hadrosaur remains in the formation, especially bonebed 50. The bones of juvenile hadrosaurs and fossil eggshell fragments are not known to have preserved in association with each other, despite both being present in the formation.[31]



















































Ornithopods reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Corythosaurus



C. casuarius




Lower-Middle, 76.5-75.5Ma ago[8]



"Approximately [ten] articulated skulls and associated postcrania, [ten to fifteen] articulated skulls, isolated skull elements, juvenile to adult."[32]


A lambeosaurin lambeosaurine hadrosaur.

Corythosaurus casuarius head.png



Gryposaurus



G. notabilis




Lower, 76.2-76Ma ago[8]



"Approximately [ten] complete skulls, [twelve] fragmentary skulls, associated postcrania."[33]


A kritosaurin saurolophine hadrosaur.

Gryposaurus BW.jpg



Lambeosaurus



L. lambei




Upper, 75.5-75Ma ago[8]



"Approximately [seven] articulated skulls with associated postcrania, [possibly ten] articulated skulls, isolated skull elements, juvenile to adult."[34]




LambeosaurusDB.jpg



L. magnicristatus




Upper/Bearpaw Formation, 74.8Ma ago[8]



"[Two] complete skulls, one with associated, articulated postcrania."[34]




Lambeosaurus magnicristatus DB.jpg



Parasaurolophus



P. walkeri




Lower, 76.5-75.3Ma ago[7]



"Complete skull and postcranial skeleton."[34]


A parasaurolophin lambeosaurine hadrosaur.

Parasaurolophuspic steveoc.jpg



Prosaurolophus



P. maximus




Upper, 75.5 – 74.8 Ma



"[Twenty to twenty-five] individuals, including at least [seven] articulated skulls and associated postcrania."[33]


A saurolophin saurolophine hadrosaur.

Prosaurolophus Maximus.jpg



Pachycephalosaurs






































Pachycephalosaurs reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Foraminacephale



F. brevis



Also present in the Oldman Formation

Frontoparetal dome, various other skull fragments including juvenile and subadult material



Once thought to be a species of Stegoceras



Foraminacephale.png



Gravitholus



G. albertae





"Frontoparietal dome."[35]





Hanssuesia



H. sternbergi




Lower, also present in the Oldman Formation and Judith River Formation





Hanssuesia sternbergi.jpg



Stegoceras



S. validum





Specimens including frontoparietal dome.[35]




Stegoceras validum.jpg



Theropods


In the Dinosaur Park Formation, small theropods are rare due to the tendency of their thin-walled bones to be broken or poorly preserved.[36] Small bones of small theropods that were preyed upon by larger ones may have been swallowed whole and digested.[37] In this context, the discovery of a small theropod dinosaur with preserved tooth marks was especially valuable.[36] Possible indeterminate avimimid and therizinosaurid remains are known from the formation.



Ornithomimids































Ornithomimids reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Ornithomimus



O. sp.[38]





Type specimen



An ornithomimid, possibly a species of Struthiomimus.[39]



"Ornithomimus" sp. by Tom Parker.png



Rativates



R. evadens





Type specimen



An ornithomimid, formerly a specimen of Struthiomimus.[40]



Rativates.png



Struthiomimus



S. altus





Type specimen



An ornithomimid



Struthiomimus BW.jpg



Oviraptorosaurs












Color key








Taxon

Reclassified taxon

Taxon falsely reported as present

Dubious taxon or junior synonym

Ichnotaxon

Ootaxon

Morphotaxon


Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.




































Oviraptorosaurs reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Caenagnathus



C. collinsi





Mandible, type specimen



Caenagnathid [41]




Chirostenotes



C. pergracilis





Several fragmentary specimens, type specimen



Caenagnathids




Leptorhynchos



L. elegans





Several fragmentary specimens, type specimen



Caenagnathids




Macrophalangia



M. canadensis






Junior synonym of Chirostenotes pergracilis




Paravians












Color key








Taxon

Reclassified taxon

Taxon falsely reported as present

Dubious taxon or junior synonym

Ichnotaxon

Ootaxon

Morphotaxon


Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.














































































Paravians reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

cf. Baptornis



Indeterminate






A hesperornithine bird




cf. Cimolopteryx



Indeterminate





Partial coracoid



A possible charadriiform bird




Dromaeosaurus



D. albertensis





Several specimens and teeth, type specimen



A dromaeosaurid



Dromaeosaurus Restoration.png



Hesperonychus



H. elizabethae





Hip bones and partial toes and claws, type specimen



A microraptorine dromaeosaur, also found in the Oldman Formation



Hesperonychus elizabethae.jpg



Latenivenatrix



L. mcmasterae





Hip bones, pelvis, skull fragments, type specimen



A troodontid



Latenivenatrix (white background).png



cf. Palintropus



Unnamed





Partial shoulder girdles



An ambiortiform bird.




cf. Paronychodon



cf. P. lacustris





Teeth



An indeterminate maniraptoran, also found in the Judith River




Richardoestesia



R. gilmorei





Mandible, type specimen



A dromaeosaurid.




Saurornitholestes



S. langstoni





Incomplete skeleton and teeth, type specimen. A dentary referred to Saurornitholestes was discovered that preserved tooth marks left by a young tyrannosaur.[42]



A dromaeosaurid



Saurornitholestes digging Burrows wahweap.jpg



Stenonychosaurus



S. inequalis





Nearly complete skeleton and other partial skeletons, type specimen.



A troodontid once thought to be a species of Troodon



Hand drawn Troodon.jpg



Tyrannosaurs












Color key








Taxon

Reclassified taxon

Taxon falsely reported as present

Dubious taxon or junior synonym

Ichnotaxon

Ootaxon

Morphotaxon


Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.






















Tyrannosaurs reported from the Dinosaur Park Formation
Genus
Species
Location
Stratigraphic position
Material
Notes
Images

Daspletosaurus



Unnamed species[43]




Middle-Upper, 75.6-75Ma ago[8]



Several specimens



A tyrannosaurine tyrannosaurid, also present in the Bearpaw Formation



Daspletosaurus torosus by durbed.jpg



Gorgosaurus



G. libratus




Lower-Middle, 76.6-75.1Ma ago[8]



Numerous specimens, type specimen[43]



An albertosaurine tyrannosaurid



Gorgosaurus.png



Fish


Remains of the following fish have been found in the formation:[44]


Chondrichthyans



  • Hybodus montanensis (a shark)


  • Cretorectolobus olsoni (a carpet shark)


  • Eucrossorhinus microcuspidatus (a carpet shark)


  • Myledaphus bipartitus (a ray)


  • Ischyrhiza mira (a sclerorhynchid)[45]


  • Protoplatyrhina renae (a guitarfish)

  • indeterminate orectolobid

Acipenseriformes (sturgeons)


  • unnamed sturgeon

  • unnamed paddlefish

  • "Acipenser albertensis"


  • Anchiacipenser acanthaspis[46]

Holostean fish


  • Belonostomus longirostris


  • Lepisosteus occidentalis (the gar)

  • unnamed bowfin

  • at least 2 other holosteans

Teleost fish



  • Paratarpon apogerontus (an elopomorph, like the tarpon)


  • Cretophareodus (an osteoglossomorph)

  • Coriops amnicolus

  • Estesesox foxi

  • Oldmanesox


  • Paralbula (including Phyllodus)

  • at least 8 other teleosts


Invertebrates


Remains of the following invertebrates have been cound in the formation:[47]


Freshwater bivalves


  • Fusconaia

  • Lampsilis


  • Sphaerium (2 species)

Freshwater gastropods



  • Campeloma (2 species)

  • Elimia


  • Goniobasis (3 species)

  • Hydrobia


  • Lioplacodes (2 species)


Mammals


Remains of the following mammals have been found in the formation:[48]


Multituberculata



  • Cimexomys sp.


  • Cimolodon spp.

  • Cimolomys clarki

  • Meniscoessus major

  • Mesodma primaeva

  • unnamed multituberculates

Metatherians


  • Alphadon halleyi

  • Eodelphis browni

  • E. cutleri

  • 5 species of "Pediomys"

  • Turgidodon russelli

  • T. praesagus

Eutherians



  • Cimolestes sp. (uncertain taxonomy)

  • Gypsonictops lewisi

  • Paranyctoides sternbergi

Unknown therians: at least 1 species



Plants



Plant body fossils


The following plant body fossils have been found in the formation:[49]


  • various ferns


  • Equisetum (Equisetaceae)

Gymnosperms



  • Platyspiroxylon (Cupressaceae)


  • Podocarpoxylon (Podocarpaceae)


  • Elatocladus (Taxodiaceae)


  • Sequoia (Taxodiaceae)


  • Sequoiaxylon (Taxodiaceae)


  • Taxodioxylon (Taxodiaceae)

Ginkgos


  • Baeria

  • Ginkgoites

Angiosperms



  • Artocarpus (Moraceae)


  • Cercidiphyllum (Cercidiphyllaceae)


  • Dombeyopsis (Sterculiaceae)


  • Menispermites (Menispermaceae)


  • Pistia (Araceae)


  • Platanus (Platanaceae)


  • Vitis (Vitaceae)


  • Trapa (Trapaceae)


Palynomorphs


Palynomorphs are organic-walled microfossils, like spores, pollen, and algae. The following palynomorphs have been found in the formation:[50]


Unknown producers


  • at least 8 species

Fungi


  • at least 35 taxa

Chlorophyta (green algae and blue-green algae)


  • at least 12 species

Pyrrhophyta (dinoflagellates, a type of marine algae)


  • unassigned cysts

Bryophytes (mosses, liverworts, and hornworts)



Anthocerotophyta (hornworts)
  • at least 5 species


Marchantiophyta (liverworts)
  • at least 14 species


Bryophyta (mosses)
  • at least 5 species

Lycopodiophyta



Lycopodiaceae (club mosses)
  • at least 11 species


Selaginellaceae (small club mosses)
  • at least 6 species


Isoetaceae (quillworts)
  • at least 1 species

Polypodiophyta



Osmundaceae (cinnamon ferns)
  • at least 6 species


Schizaeaceae (climbing ferns)
  • at least 20 species


Gleicheniaceae (Gleichenia and allies; coral ferns)
  • at least 5 species


Cyatheaceae (Cyathea and allies)
  • at least 4 species


Dicksoniaceae (Dicksonia and allies)
  • at least 3 species


Polypodiaceae (ferns)
  • at least 4 species


Matoniaceae
  • at least 1 species


Marsileaceae
  • at least 1 species

Pinophyta (gymnosperms)



Cycadaceae (cycads)
  • at least 3 species


Caytoniaceae
  • at least 1 species


Pinaceae (pines)
  • at least 4 species


Cupressaceae (cypresses)
  • at least 3 species


Podocarpaceae (Podocarpus and allies)
  • at least 4 species


Cheirolepidiaceae
  • at least 2 species


Ephedraceae (Mormon teas)
  • at least 6 species

Unknown gymnosperms: at least 3 species


Magnoliophyta (angiosperms)



Magnoliopsida (dicots)

Buxaceae (boxwood)
  • at least 1 species


Gunneraceae (gunneras)
  • at least 1 species


Salicaceae (willows, cottonwood, quaking aspen)
  • at least 1 species


Droseraceae (sundews)
  • at least 1 species


Olacaceae (tallowwood)
  • at least 2 species


Loranthaceae (showy mistletoes)
  • at least 1 species


Sapindaceae (soapberry)
  • at least 1 species


Aceraceae (maples)
  • at least 1 species


Proteaceae (proteas)
  • at least 9 species


Compositae (sunflowers)
  • at least 1 species


Fagaceae (beeches, oaks, chestnuts)
  • at least 2 species


Betulaceae (birches, alders)
  • at least 1 species


Ulmaceae (elms)
  • at least 1 species


Chenopodiaceae (goosefoots)
  • at least 1 species



Liliopsida (monocots)

Liliaceae (lilies)
  • at least 6 species


Cyperaceae (sedges)
  • at least 1 species


Sparganiaceae (bur-reeds)
  • possibly 1 species


Unknown angiosperms: at least 88 species


Other reptiles



Choristoderes


Choristoderes, or champsosaurs, were aquatic reptiles. Small examples looked like lizards, while larger types were superficially similar to crocodilians. Remains of the following Choristoderes have been found in the formation:[51]



  • Champsosaurus (at least 3 species)

  • Cteniogenys


Crocodylians


Remains of the following Crocodylians have been found in the formation:[52]


  • Albertochampsa

  • Leidyosuchus

  • at least 1 unnamed taxon


Lizards


Remains of the following lizards have been found in the formation:[53]


Helodermatids


  • Labrodioctes

Necrosaurids


  • Parasaniwa

Teiids


  • Glyptogenys

  • Socognathus

Varanids


  • Palaeosaniwa

Xenosaurids


  • ?Exostinus


Plesiosaurs


Remains of the following Plesiosaurs have been found in the formation:[54]


  • indeterminate elasmosaurids (very long-necked) (more common)

  • indeterminate polycotylids (shorter-necked)


Pterosaurs


Remains of the following Pterosaurs have been found in the formation:[55]



  • Navajodactylus[56]

  • 1 large unnamed azhdarchid (giant, long-necked pterosaur)

  • 1 smaller unnamed azhdarchid

  • 1 unnamed non-azhdarchid pterosaur


Turtles


Remains of the following turtles have been found in the formation:[57]


  • Adocus

  • "Apalone"


  • Aspideretoides (3 species)

  • Basilemys

  • Boremys

  • Judithemys

  • Neurankylus

  • Plesiobaena

  • 2 indeterminate taxa


Timeline of new taxa


The following timeline displays valid taxa first discovered in the dinosaur. Some species may have been referred to other genera subsequent to their initial description.



21st century in paleontology20th century in paleontology19th century in paleontology2090s in paleontology2080s in paleontology2070s in paleontology2060s in paleontology2050s in paleontology2040s in paleontology2030s in paleontology2020s in paleontology2010s in paleontology2000s in paleontology1990s in paleontology1980s in paleontology1970s in paleontology1960s in paleontology1950s in paleontology1940s in paleontology1930s in paleontology1920s in paleontology1910s in paleontology1900s in paleontology1890s in paleontology1880s in paleontology1870s in paleontology1860s in paleontology1850s in paleontologyLatenivenatrixRativatesLeptorhynchosUnescoceratopsVagaceratopsHesperonychusChasmosaurus irvinensisRichardoestesiaGravitholusSaurornitholestesDaspletosaurusTroodon sternbergiChasmosaurus russeliLambeosaurus magnicristatusStenonychosaurus inequalisScolosaurusDyoplosaurusChirostenotesLambeosaurusParasaurolophusDromaeosaurusPanoplosaurusStruthiomimusProsaurolophusGryposaurusGorgosaurusCorythosaurusChasmosaurusStyracosaurusCentrosaurusStereocephalus tutusStegocerasOrnithomimus altusMonoclonius belliEuoplocephalus21st century in paleontology20th century in paleontology19th century in paleontology2090s in paleontology2080s in paleontology2070s in paleontology2060s in paleontology2050s in paleontology2040s in paleontology2030s in paleontology2020s in paleontology2010s in paleontology2000s in paleontology1990s in paleontology1980s in paleontology1970s in paleontology1960s in paleontology1950s in paleontology1940s in paleontology1930s in paleontology1920s in paleontology1910s in paleontology1900s in paleontology1890s in paleontology1880s in paleontology1870s in paleontology1860s in paleontology1850s in paleontology


See also



  • List of dinosaur-bearing rock formations


Footnotes




  1. ^ abc Fowler, D. (2016). A new correlation of the Cretaceous formations of the Western Interior of the United States, I: Santonian-Maastrichtian formations and dinosaur biostratigraphy. Peer J Preprints.


  2. ^ Lexicon of Canadian Geologic Units: Dinosaur Park Formation Archived 2013-02-21 at Archive.today


  3. ^ abc Eberth, D.A. and Hamblin A.P. 1993. Tectonic, stratigraphic, and sedimentologic significance of a regional discontinuity in the upper Judith River Group (Belly River wedge) of southern Alberta, Saskatchewan, and northern Montana. Canadian Journal of Earth Sciences 30: 174-200.


  4. ^ abcd Eberth, D.A. 2005. The geology. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p.54-82. .mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
    ISBN 0-253-34595-2.



  5. ^ Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 277-291.
    ISBN 0-253-34595-2.



  6. ^ Ryan and Evans (2005).


  7. ^ ab Evans D.C.; Bavington R.; Campione N.E. (2009). "An unusual hadrosaurid braincase from the Dinosaur Park Formation and the biostratigraphy of Parasaurolophus (Ornithischia: Lambeosaurinae) from southern Alberta". Canadian Journal of Earth Sciences. 46 (11): 791–800. Bibcode:2009CaJES..46..791E. doi:10.1139/E09-050.
    [permanent dead link]



  8. ^ abcdefghijklmnop Arbour, V. M.; Burns, M. E.; Sissons, R. L. (2009). "A redescription of the ankylosaurid dinosaur Dyoplosaurus acutosquameus Parks, 1924 (Ornithischia: Ankylosauria) and a revision of the genus". Journal of Vertebrate Paleontology. 29 (4): 1117–1135. doi:10.1671/039.029.0405.


  9. ^ abc Penkalski, P. (2013). "A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA". Acta Palaeontologica Polonica. doi:10.4202/app.2012.0125.


  10. ^ Mallon, J. C., Evans, D. C., Ryan, M. J., & Anderson, J. S. (2012). Megaherbivorous dinosaur turnover in the Dinosaur Park Formation (upper Campanian) of Alberta, Canada. Palaeogeography, Palaeoclimatology, Palaeoecology.


  11. ^ Gardner, J.D. 2005. Lissamphibians. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 186-201.
    ISBN 0-253-34595-2.



  12. ^ "Fossilworks: Gateway to the Paleobiology Database". fossilworks.org. Retrieved 23 April 2018.


  13. ^ "Fossilworks: Gateway to the Paleobiology Database". fossilworks.org. Retrieved 23 April 2018.


  14. ^ Currie, P.J. 2005. Theropods, including birds. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 367-397.
    ISBN 0-253-34595-2.



  15. ^ Ryan, M.J., and Evans, D.C. 2005. Ornithischian dinosaurs. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 312-348.
    ISBN 0-253-34595-2.



  16. ^ "Table 17.1," in Weishampel, et al. (2004). Page 365.


  17. ^ Paul Penkalski (2018). Revised systematics of the armoured dinosaur Euoplocephalus and its allies. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 287(3): 261-306. doi: https://doi.org/10.1127/njgpa/2018/0717


  18. ^ Penkalski, P. (2013). "A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA". Acta Palaeontologica Polonica. doi:10.4202/app.2012.0125.


  19. ^ abc "Table 23.1," in Weishampel, et al. (2004). Page 495.


  20. ^ ab "Table 23.1," in Weishampel, et al. (2004). Page 496.


  21. ^ abc Ryan, Michael J.; Evans, David C.; Currie, Phillip J.; Loewen, Mark A. (2014). "A New chasmosaurine from northern Laramidia expands frill disparity in ceratopsid dinosaurs". Naturwissenschaften. doi:10.1007/s00114-014-1183-1


  22. ^ abcd Nicholas R. Longrich (2014). "The horned dinosaurs Pentaceratops and Kosmoceratops from the upper Campanian of Alberta and implications for dinosaur biogeography". Cretaceous Research. 51: 292–308. doi:10.1016/j.cretres.2014.06.011.


  23. ^ Jordan C. Mallon, Christopher J. Ott, Peter L. Larson, Edward M. Iuliano and David C. Evans (2016). "Spiclypeus shipporum gen. et sp. nov., a Boldly Audacious New Chasmosaurine Ceratopsid (Dinosauria: Ornithischia) from the Judith River Formation (Upper Cretaceous: Campanian) of Montana, USA". PLoS ONE. 11 (5): e0154218. Bibcode:2016PLoSO..1154218M. doi:10.1371/journal.pone.0154218. PMC 4871577. PMID 27191389.CS1 maint: Uses authors parameter (link)


  24. ^ abcde Farke, Andrew A.; Michael J. Ryan; Paul M. Barrett; Darren H. Tanke; Dennis R. Braman; Mark A. Loewen; Mark R. Graham (2011). "A new centrosaurine from the Late Cretaceous of Alberta, Canada, and the evolution of parietal ornamentation in horned dinosaurs" (PDF). Acta Palaeontologica Polonica. 56 (4): 691–702. doi:10.4202/app.2010.0121.


  25. ^ Michael J. Ryan; David C. Evans; Philip J. Currie; Caleb M. Brown; Don Brinkman (2012). "New leptoceratopsids from the Upper Cretaceous of Alberta, Canada". Cretaceous Research. 35: 69–80. doi:10.1016/j.cretres.2011.11.018.


  26. ^ Scott D. Sampson; Mark A. Loewen; Andrew A. Farke; Eric M. Roberts; Catherine A. Forster; Joshua A. Smith; Alan L. Titus (2010). "New Horned Dinosaurs from Utah Provide Evidence for Intracontinental Dinosaur Endemism". PLoS ONE. 5 (9): e12292. Bibcode:2010PLoSO...512292S. doi:10.1371/journal.pone.0012292. PMC 2929175. PMID 20877459.


  27. ^ ab "Abstract," Tanke and Brett-Surman (2001). Page 206.


  28. ^ "Conclusions," Tanke and Brett-Surman (2001). Page 212.


  29. ^ ab "Eggshell," Tanke and Brett-Surman (2001). Page 209.


  30. ^ "Introduction," Tanke and Brett-Surman (2001). Page 208.


  31. ^ "Discussion," Tanke and Brett-Surman (2001). Page 212.


  32. ^ "Table 20.1," in Weishampel, et al. (2004). Page 441.


  33. ^ ab "Table 20.1," in Weishampel, et al. (2004). Page 440.


  34. ^ abc "Table 20.1," in Weishampel, et al. (2004). Page 442.


  35. ^ ab "Table 21.1," in Weishampel, et al. (2004). Page 465.


  36. ^ ab "Introduction," Jacobsen (2001). Page 59.


  37. ^ "Discussion," Jacobsen (2001). Page 61.


  38. ^ Longrich, N. R. (2014). "The horned dinosaurs Pentaceratops and Kosmoceratops from the upper Campanian of Alberta and implications for dinosaur biogeography". Cretaceous Research, 51: 292. doi:10.1016/j.cretres.2014.06.011


  39. ^ Longrich, N. (2008). "A new, large ornithomimid from the Cretaceous Dinosaur Park Formation of Alberta, Canada: Implications for the study of dissociated dinosaur remains." Palaeontology, 51(4): 983-997.


  40. ^ McFeeters, B. et al., "A new ornithomimid theropod from the Dinosaur Park Formation of Alberta, Canada" Journal of Vertebrate Paleontology doi:10.1080/02724634.2016.1221415


  41. ^ Longrich, N. R.; Barnes, K.; Clark, S.; Millar, L. (2013). "Caenagnathidae from the Upper Campanian Aguja Formation of West Texas, and a Revision of the Caenagnathinae". Bulletin of the Peabody Museum of Natural History. 54: 23. doi:10.3374/014.054.0102.


  42. ^ "Abstract," Jacobsen (2001). Page 58.


  43. ^ ab Currie, Philip J. (2003). "Cranial anatomy of tyrannosaurids from the Late Cretaceous of Alberta". Acta Palaeontologica Polonica. 48 (2): 191–226.


  44. ^ Neuman, A.G., and Brinkman, D.B. 2005. Fishes of the fluvial beds. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 167-185.
    ISBN 0-253-34595-2.



  45. ^ "Fossilworks: Gateway to the Paleobiology Database". fossilworks.org. Retrieved 23 April 2018.


  46. ^ Hiroki Sato; Alison M. Murray; Oksana Vernygora; Philip J. Currie (2018). "A rare, articulated sturgeon (Chondrostei: Acipenseriformes) from the Upper Cretaceous of Dinosaur Provincial Park, Alberta, Canada". Journal of Vertebrate Paleontology. Online edition: e1488137. doi:10.1080/02724634.2018.1488137.


  47. ^ Johnston, P.A., and Hendy, A.J.W. 2005. Paleoecology of mollusks from the Upper Cretaceous Belly River Group. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 139-166.
    ISBN 0-253-34595-2.



  48. ^ Fox, R.C. 2005. Late Cretaceous mammals. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 417-435.
    ISBN 0-253-34595-2.



  49. ^ Koppelhus, E.B. 2005. Paleobotany. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 131-138.
    ISBN 0-253-34595-2.



  50. ^ Braman, D.R., and Koppelhus, E.B. 2005. Campanian palynomorphs. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 101-130.
    ISBN 0-253-34595-2.



  51. ^ K.Gao and Brinkman, D.B. 2005. Choristoderes from the Park and its vicinity. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 221-234.
    ISBN 0-253-34595-2.



  52. ^ Xiao-Chun Wu. 2005. Crocodylians. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 277-291.
    ISBN 0-253-34595-2.



  53. ^ Caldwell, M.W. The squamates: origins, phylogeny, and paleoecology. In: Currie, P.J., and Koppelhus, E.B. (eds). 2005. ‘’Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 235-248.
    ISBN 0-253-34595-2.



  54. ^ Sato, T., Eberth, D.A., Nicholls, E.L., and Manabe, M. 2005. Plesiosaurian remains from non-marine to paralic sediments. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 249-276.
    ISBN 0-253-34595-2.



  55. ^ Godfrey, S.J., and Currie, P.J. 2005. Pterosaurs. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 292-311.
    ISBN 0-253-34595-2.



  56. ^ Robert M. Sullivan and Denver W. Fowler (2011). "Navajodactylus boerei, n. gen., n. sp., (Pterosauria, ?Azhdarchidae) from the Upper Cretaceous Kirtland Formation (upper Campanian) of New Mexico" (PDF). Fossil Record 3. New Mexico Museum of Natural History and Science, Bulletin. 53: 393–404.CS1 maint: Uses authors parameter (link)


  57. ^ Brinkman, D.B. 2005. Turtles: diversity, paleoecology, and distribution. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, p. 202-220.
    ISBN 0-253-34595-2.




References



  • Arbour, V. M.; Burns, M. E.; Sissons, R. L. (2009). "A redescription of the ankylosaurid dinosaur Dyoplosaurus acutosquameus Parks, 1924 (Ornithischia: Ankylosauria) and a revision of the genus". Journal of Vertebrate Paleontology. 29 (4): 1117–1135. doi:10.1671/039.029.0405.

  • Braman, D.R., and Koppelhus, E.B. 2005. Campanian palynomorphs. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 101-130.

  • Brinkman, D.B. 2005. Turtles: diversity, paleoecology, and distribution. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 202-220.

  • Caldwell, M.W. The squamates: origins, phylogeny, and paleoecology. In: Currie, P.J., and Koppelhus, E.B. (eds). 2005. ‘’Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 235-248.

  • Currie, P.J. 2005. Theropods, including birds. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 367-397.

  • Currie, P.J., and Koppelhus, E.B. (eds). 2005. Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 648 p.

  • Eberth, D.A. 2005. The geology. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 54-82.

  • Fox, R.C. 2005. Late Cretaceous mammals. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 417-435.

  • K. Gao and Brinkman, D.B. 2005. Choristoderes from the Park and its vicinity. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 221-234.

  • Gardner, J.D. 2005. Lissamphibians. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 186-201.

  • Godfrey, S.J., and Currie, P.J. 2005. Pterosaurs. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 292-311.

  • Johnston, P.A., and Hendy, A.J.W. 2005. Paleoecology of mollusks from the Upper Cretaceous Belly River Group. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 139-166.

  • Koppelhus, E.B. 2005. Paleobotany. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 131-138.


  • Lexicon of Canadian Geologic Units. "Dinosaur Park Formation". Archived from the original on 2013-02-21. Retrieved 2011-03-29.

  • Neuman, A.G., and Brinkman, D.B. 2005. Fishes of the fluvial beds. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 167-185.

  • Ryan, M.J., and Evans, D.C. 2005. Ornithischian dinosaurs. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 312-348.

  • Sato, T., Eberth, D.A., Nicholls, E.L., and Manabe, M. 2005. Plesiosaurian remains from non-marine to paralic sediments. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 249-276.

  • Tanke, D.H. and Brett-Surman, M.K. 2001. Evidence of Hatchling and Nestling-Size Hadrosaurs (Reptilia:Ornithischia) from Dinosaur Provincial Park (Dinosaur Park Formation: Campanian), Alberta, Canada. pp. 206–218. In: Mesozoic Vertebrate Life—New Research Inspired by the Paleontology of Philip J. Currie. Edited by D.H. Tanke and K. Carpenter. Indiana University Press: Bloomington. xviii + 577 pp.

  • Xiao-Chun Wu. 2005. Crocodylians. In: Currie, P.J., and Koppelhus, E.B. (eds), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press: Bloomington and Indianapolis, 277-291.

Coordinates: 50°42′N 111°30′W / 50.7°N 111.5°W / 50.7; -111.5








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