Bear Creek/Rock Creek (UMMP): Late/Upper Maastrichtian, Montana
collected by E. C. Case, W. H. Buettner, & J. A. Wilson 1938
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Ceratopsidae
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Triceratops sp.
Marsh 1889
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Anderson 1999 | 2 individuals | ||||||||
UM 17062 + rib specimen | ||||||||||
Reptilia
- Hadrosauridae
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Anatosaurus sp.
Lull and Wright 1942
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1 individual | |||||||||
synonym of Edmontosaurus | ||||||||||
UM exhibit specimen | ||||||||||
Acipenseriformes
- Acipenseridae
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Protoscaphirhynchus squamosus n. gen., n. sp.
Wilimovsky 1956
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Wilimovsky 1956 | 2 specimens | ||||||||
Acipenseriformes
- Polyodontidae
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Paleopsephurus wilsoni n. gen., n. sp.
MacAlpin 1947
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Wilimovsky 1956 | 2 specimens | ||||||||
see common names |
Geography
Country: | United States | State/province: | Montana | County: | McCone |
Coordinates: | 47.8° North, 106.2° West (view map) | ||||
Paleocoordinates: | 54.4° North, 79.1° West | ||||
Basis of coordinate: | stated in text | ||||
Altitude: | 2320 feet | ||||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Late/Upper Maastrichtian | ||
Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
Formation: | Hell Creek | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: near boundary with Ft. Union Fm. |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Articulated whole bodies: | some |
Associated major elements: | some |
Disassociated major elements: | some |
Fragmentation: | frequent |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection methods: | selective quarrying,surface (in situ),mechanical,field collection | ||
Reason for describing collection: | general faunal/floral analysis | ||
Museum repositories: | UMMP | ||
Collectors: | E. C. Case, W. H. Buettner, & J. A. Wilson | Collection dates: | 1938 |
Collection method comments: collected by E. C. Case, W. H. Buettner, and J. A. Wilson |
Metadata
Also known as: | Fort Peck | ||
Database number: | 67129 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2006-11-09 11:59:57 | Last modified: | 2018-02-12 10:26:28 |
Access level: | the public | Released: | 2006-11-09 11:59:57 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
12319. | ETE | 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] |
Secondary references:
19146 | ETE | J. S. Anderson. 1999. Occipital condyle in the ceratopsian Triceratops, with comments on body size variation. Contributions from the Museum of Paleontology, University of Michigan 30(8):215-231 [M. Carrano/M. Carrano] |
64680 | L. B. Kellum. 1956. The Museum of Paleontology. In W. A. Donnelly, W. B. Shaw, & R. W. Gjelsness (eds.), The University of Michigan: An Encyclopedic Survey 8:1487-1502 [M. Carrano/M. Carrano] | |
19809 | ETE | N. J. Wilimovsky. 1956. Protoscaphirhynchus squamosus, a new sturgeon from the Upper Cretaceous of Montana. Journal of Paleontology 30(5):1205-1208 [M. Carrano/M. Carrano/M. Carrano] |