Also known as V8120
Where: Fall River County, South Dakota (44.0° N, 103.3° W: paleocoordinates 49.8° N, 71.0° W)
• coordinate estimated from map
When: Gammon Ferruginous Member (Pierre Shale Formation), Early/Lower Campanian (83.5 - 70.6 Ma)
• Early Campanian, specimen occurs eleven feet below the Ardmore Bentonite
• member-level stratigraphic resolution
Environment/lithology: marine; ferruginous shale
Size classes: macrofossils, mesofossils
Preservation: trace
Reposited in the SDSM
Primary reference: P. R. Bjork. 1981. Food habits of mosasaurs from the Pierre Shale of South Dakota. Abstracts with Programs, Rocky Mountian Section, Geological Society of America 13(4):191 [J. Alroy/E. Leckey/E. Leckey]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 39388: authorized by John Alroy, entered by Erin Leckey on 27.05.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
| |
Actinopteri | |
Reptilia | |
Tylosaurus proriger mosasaur
Clidastes sp. Cope 1868 mosasaur | |
Aves | |
Hesperornis sp. Marsh 1872 bird | |
Cephalopoda | |
Baculites sp. Lamarck 1799 ammonite |