Bijou Creek (USG&GS): Maastrichtian, Colorado
collected by E. D. Cope 1873

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines
Trionyx vagans n. sp. Cope 1874
Cope 1874 1 specimen
nomen dubium belonging to Pantrionychidae
- from same locality as the holotype of Plastomenus punctulatus
? Plastomenus insignis n. sp. Cope 1874
Cope 1874 1 specimen
nomen dubium belonging to Pantrionychidae
AMNH 1846, holotype fragment of hyoplastron - from same locality as the holotype of Plastomenus punctulatus
? Plastomenus punctulatus n. sp. Cope 1874
Cope 1874 1 specimen
nomen dubium belonging to Pantrionychidae
AMNH 1845, holotype costal plate fragment ('in deposits believed by Whitman Cross to belong to the Arapahoe formation'; however, the locality, collector and date match the current locality)
Reptilia - Ceratopsidae
Polyonax mortuarius n. gen., n. sp. Cope 1874
1 specimen
nomen dubium belonging to Ceratopsidae
Reptilia - Hadrosauridae
Agathaumas milo n. sp. Cope 1874
synonym of Edmontosaurus regalis
Cionodon arctatus n. gen., n. sp. (Cope 1874)
1 specimen
nomen dubium belonging to Hadrosauridae
see common names

Geography
Country:United States State/province:Colorado County:Adams
Coordinates: 40.3° North, 106.9° West (view map)
Paleocoordinates:47.4° North, 82.5° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Laramie
Stratigraphic resolution:group of beds
Stratigraphy comments: also listed as Arapahoe Fm. and "Bitter Creek Coal Series"
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:extreme
Collection methods and comments
Collection methods:surface (float),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:AMNH
Collectors:E. D. Cope Collection dates:1873
Collection method comments: collection made by one of Cope's assistants
Metadata
Database number:49524
Authorizer:M. Carrano, R. Benson Enterer:M. Carrano, R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:2005-04-19 11:38:22 Last modified:2017-10-27 12:34:45
Access level:the public Released:2005-04-19 11:38:22
Creative Commons license:CC BY
Reference information

Primary reference:

53327. E. D. Cope. 1874. Report on the stratigraphy and Pliocene vertebrate paleontology of northern Colorado. Bulletin of the United States Geological and Geographical Survey of the Territories 1(1):9-22 [J. Marcot/J. Marcot/M. Carrano]

Secondary references:

13266ETE K. Carpenter and D. B. Young. 2002. Late Cretaceous dinosaurs from the Denver Basin, Colorado. Rocky Mountain Geology 37(2):237-254 [M. Carrano/M. Carrano/M. Carrano]
63646 E. D. Cope. 1874. Review of the Vertebrata of the Cretaceous Period found west of the Mississippi River. Bulletin of the United States Geological and Geographical Survey of the Territories, First Series 2:3-48 [M. Carrano/M. Carrano/M. Carrano]
63647 E. D. Cope. 1875. The Vertebrata of the Cretaceous formations of the west. Report of the United States Geological and Geographical Survey of the Territories 2:1-303 [M. Carrano/M. Carrano/M. Carrano]
17555ETE E. D. Cope. 1875. Report on the vertebrate paleontology of Colorado. Annual Report of the United States Geological and Geographical Survey of the Territories 1873:427-533 [M. Carrano/M. Carrano/M. Carrano]
9274 E. D. Cope. 1889. The horned Dinosauria of the Laramie. The American Naturalist 23:715-717 [M. Carrano/M. Carrano/M. Carrano]
14442ETE O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 [M. Carrano/M. Carrano/M. Carrano]
53400 J. H. Johnson. 1931. The paleontology of the Denver quadrangle, Colorado. Colorado Scientific Society, Proceedings 12(11):355-378 [M. Carrano/M. Carrano]
12319ETE R. S. Lull and N. E. Wright. 1942. Hadrosaurian dinosaurs of North America. Geological Society of America Special Paper 40:1-242 [M. Carrano/M. Carrano/M. Carrano]