File:Hell Creek Formation Fauna.png

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DescriptionHell Creek Formation Fauna.png	English: Diagram depicting the currently named Dinosauria (avians excluded) from the Late Cretaceous Hell Creek Formation of USA. Dinosaur taxa: Acheroraptor temertyorum → Length = 2.3 meters.^[1] Ankylosaurus magniventris → Length = 8 meters.^[2] Anzu wyliei → Length = ∼3.75 meters.^[3] May be much larger.^[4] Dakotaraptor steini → Length = 5.5 meters.^[5] Denversaurus schlessmani → Length = 6 meters.^[3] Edmontosaurus annectens → Length = ∼15 meters.^[6] Leptoceratops gracilis → Length = 2 meters.^[3] Ornithomimus velox → Length = 3.5 meters.^[7] Pachycephalosaurus wyomingensis → Length = ∼7 meters.^[7] Pectinodon bakkeri → Length = 2.4 meters.^[1] Sphaerotholus buchholtzae → Length = 2.4 meters.^[7] Struthiomimus? sedens → Length = ∼4.8 meters.^[3] Thescelosaurus garbanii → Length = 4.5 meters.^[8] Thescelosaurus neglectus → Length = 4 meters.^[8]^[7] Torosaurus latus → Length = 8 meters.^[3] Triceratops horridus → Length = 9 meters.^[3] Triceratops prorsus → Length = 8 meters.^[3] Trierarchuncus prairiensis → Length = ∼1.4 meters.^[9] Tyrannosaurus rex → Length = 13 meters.^[10] References ↑ ^a ^b (2016) Dinosaur Facts and Figures: The Theropods and Other Dinosauriformes, Princeton: Princeton University Press, pp. 270 DOI: 10.1515/9780691190594. ISBN: 9788416641154. ↑ (2017). "Unusual cranial and postcranial anatomy in the archetypal ankylosaur Ankylosaurus magniventris". FACETS 2 (2): 764–794. DOI:10.1139/facets-2017-0063. ↑ ^a ^b ^c ^d ^e ^f ^g (2016) The Princeton Field Guide to Dinosaurs (2nd ed.), Princeton: Princeton University Press ISBN: 9780691167664. ↑ (2020). "Morphology and osteohistology of a large-bodied caenagnathid (Theropoda, Oviraptorosauria) from the Hell Creek Formation (Montana): implications for size-based classifications and growth reconstruction in theropods". Papers in Paleontology 7 (2): 751−767. DOI:10.1002/spp2.1302. ↑ (2015). "The First Giant Raptor (Theropoda: Dromaeosauridae) from the Hell Creek Formation.". Paleontological Contributions (14). DOI:10.17161/paleo.1808.18764. ↑ (2011). "Dinosaur Census Reveals Abundant Tyrannosaurus and Rare Ontogenetic Stages in the Upper Cretaceous Hell Creek Formation (Maastrichtian), Montana, USA.". PLOS ONE 6 (2): e16574. DOI:10.1371/journal.pone.0016574. PMID 21347420. PMC: 3036655. ↑ ^a ^b ^c ^d (2007) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Random House ISBN: 9780375824197. Genus List for Holtz 2012 Weight Information ↑ ^a ^b (2009). "Taxonomic revision of the basal neornithischian taxa Thescelosaurus and Bugenasaura". Journal of Vertebrate Paleontology 29 (3): 758–770. DOI:10.1671/039.029.0328. ↑ (2020). "Trierarchuncus prairiensis gen. et sp. nov., the last alvarezsaurid: Hell Creek Formation (uppermost Maastrichtian), Montana". Cretaceous Research 116. DOI:10.1016/j.cretres.2020.104560. ↑ (2020). "An Older and Exceptionally Large Adult Specimen of Tyrannosaurus rex". The Anatomical Record 303 (4): 656–672. DOI:10.1002/ar.24118. PMID 30897281. ISSN 1932-8486.
Date	22 July 2019
Source	Own work
Author	PaleoNeolitic
Other versions	Derivative works of this file: Hell Creek Formation Fauna - BlueTrike.png

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File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	02:06, 26 December 2021	14,861 × 3,614 (3.59 MB)	PaleoNeolitic	Giga update, restricted to non-avian dinosaurs.
	22:26, 15 July 2020	18,281 × 5,035 (5.49 MB)	PaleoNeolitic	Added Trierarchuncus.
	01:29, 1 February 2020	18,281 × 5,035 (5.52 MB)	PaleoNeolitic	Mispelled Tyrannosaurus.
	23:07, 27 January 2020	18,281 × 5,035 (5.51 MB)	PaleoNeolitic	Fixed ''Mosasaurus'', ''Quetzalcoatlus'' and ''Champsaosaurus'', apoligies for the confusion.
	00:50, 27 January 2020	18,281 × 5,035 (5.49 MB)	PaleoNeolitic	Optimization update.
	02:20, 23 December 2019	18,281 × 5,722 (5.58 MB)	PaleoNeolitic	Updated Dakotaraptor.
	20:41, 2 November 2019	18,281 × 5,722 (5.57 MB)	PaleoNeolitic	Updated Edmontosaurus and added paleoflora.
	03:05, 16 October 2019	18,281 × 5,722 (2.32 MB)	PaleoNeolitic	Updated silhouettes and sizes. Quetzalcoatlus indeterminate changed to Azhdarchid indeterminate, as suggested by Shuvuuia and Slate Weasel.
	15:19, 5 October 2019	18,204 × 5,722 (2.22 MB)	PaleoNeolitic	Edmontonia excluded from the diagram, as suggested by Shuvuuia and Slate Weasel, dubious or absent presence in the fauna. Quetzalcoatlus reduced to 5 meters (specimen BMR P2002.2) and classified as indeterminate species. ''Mosasaurus'' changed to ''Mosasaur'' and classified as indeterminate genera, due to have very fragmentary remains.
	01:24, 4 October 2019	18,610 × 5,722 (2.3 MB)	PaleoNeolitic	Corrected size for Avisaurus.