Blue Springs section, bed 8 (Permian of the United States)

Where: Nebraska (40.1° N, 96.7° W: paleocoordinates 4.7° N, 24.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Florence Member (Barneston Formation), Artinskian (290.1 - 279.3 Ma)

• Most likely from Florence limestone, but possible from Fort Riley limestone

Environment/lithology: lithified, yellow limestone

• Compact yellowish limestone containing vertebrates and invertebrates

Size class: macrofossils

Collected by Wilbur Knight

Primary reference: E. D. Cope. 1891. On the characters of some Paleozoic fishes. Proceedings of the United States National Museum 14:447-463 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 149351: authorized by Matthew Clapham, entered by Matthew Clapham on 02.08.2013, edited by Priscilla Vazquez

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Ctenacanthiformes - Ctenacanthidae
"Styptobasis knightiana n. gen. n. sp." = Cladodus knightianus
"Styptobasis knightiana n. gen. n. sp." = Cladodus knightianus Cope 1891 elasmobranch
 Phoebodontiformes - Phoebodontidae
Phoebodus knightianus n. sp. Eastman 1903 elasmobranch