Where: Fall River County, South Dakota (43.4° N, 103.3° W)
• Paleocoordinates: 52.0° N, 61.9° W (Wright 2013)
• coordinate stated in text
• outcrop-level geographic resolution
When: Gammon Ferruginous Member (Pierre Shale Formation), Early/Lower Campanian (83.6 - 72.2 Ma)
• member-level stratigraphic resolution
Environment/lithology: deep-water; concretionary shale
Size classes: macrofossils, mesofossils
Reposited in the SDSM
Collection methods: surface (in situ),
Primary reference: J. E. Martin and L. E. Kennedy. 1988. A plesiosaur with stomach contents from the Late Cretaceous (Campanian) Pierre Shale of South Dakota: a prelimiinary report. Proceedings of the South Dakota Academy of Sciences 67:76-79 [J. Alroy/E. Leckey/E. Leckey]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 35333: authorized by John Alroy, entered by Erin Leckey on 01.12.2003
Creative Commons license: CC0 (CC0)
Taxonomic list
Actinopteri | |
Reptilia | |
? Styxosaurus browni Welles 1952 elasmosaur |