Where: Clark County, Arkansas (33.5° N, 92.1° W: paleocoordinates 37.2° N, 64.0° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Mooreville Chalk Formation (Selma Group), Early/Lower Campanian to Early/Lower Campanian (83.5 - 70.6 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: E. D. Cope. 1869. Synopsis of the Extinct Batrachia, Reptilia and Aves of North America. Part I. Transactions of the American Philosophical Society, New Series 14:1-104 [R. Butler/E. Dunne/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 189417: authorized by Matthew Carrano, entered by Matthew Carrano on 18.10.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Brimosaurus grandis n. sp.
Brimosaurus grandis n. sp. Leidy 1855 elasmosaur |