Where: Niobrara County, Wyoming (43.4° N, 104.2° W: paleocoordinates 49.5° N, 72.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Baculites sp. (weakly ribbed)-Baculites obtusus ammonoid zone, Sharon Springs Member (Pierre Shale Formation), Early/Lower Campanian (83.5 - 70.6 Ma)
• Ammonite Zone range of the Sharon Springs Member in Wyoming is Baculites sp. (weakly ribbed)-Baculites obtusus, Early Campanian according to Gill et al. 1972
• bed-level stratigraphic resolution
Environment/lithology: marine; gray shale
Size class: macrofossils
Collected by B. Brown in 1904; reposited in the AMNH
Collection methods: mechanical,
Primary reference: K. Carpenter. 1999. Revision of North American elasmosaurs from the Cretaceous of the Western Interior. Paludicola 2(2):148-173 [M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 77348: authorized by Matthew Carrano, entered by Matthew Carrano on 09.01.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Styxosaurus browni n. sp.
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