Also known as Stegopelta type
Where: Fremont County, Wyoming (42.8° N, 108.0° W: paleocoordinates 43.2° N, 68.7° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Belle Fourche Member (Frontier Formation), Early/Lower Cenomanian (99.6 - 93.5 Ma)
• lower part of member; originally described as the "Hailey Shale" Formation
•
•The lower unit is of Early Cenomanian age, whereas the upper unit is of Late Cenomanian age (Bloch et al., 1993).
• bed-level stratigraphic resolution
Environment/lithology: estuary or bay; blue shale and brown, sandy claystone
Size classes: macrofossils, mesofossils
Collected by S. Williston in the 1900s; reposited in the FMNH
Collection methods: surface (float), mechanical,
Primary reference: S. W. Williston. 1905. A new armored dinosaur from the Upper Cretaceous of Wyoming. Science 22(564):503 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 27889: authorized by Matthew Carrano, entered by Matthew Carrano on 15.01.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Bivalvia | |
Ostrea sp. Linnaeus 1758 oyster | |
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam | |
Reptilia | |
Teleosauridae indet. Geoffroy 1831 marine crocodile | |
Stegopelta landerensis n. gen. n. sp.
| |
Plesiosauria indet. de Blainville 1835 plesiosaur | |
Polycotylus sp. Cope 1869 plesiosaur |