Loc. 1: Campbell Hollow near Sullivan (Cambrian of the United States)

Also known as Eminence Dolomite, Crawford County, Missouri - Yochelson 1985

Where: Crawford County, Missouri (38.2° N, 91.2° W: paleocoordinates 22.4° S, 86.2° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Cordylodus proavus conodont zone, Lower Member (Eminence Formation), Trempealeauan (501.0 - 485.4 Ma)

• Specimens from residuum rather than in situ outcrop and in a forested area

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, dolomitic chert

• dolmitized chert

Size class: macrofossils

Preservation: cast, replaced with silica

Reposited in the USNM

Collection methods: peel or thin section,

• Collected by L. Nuelle and David M. Work while students at the University of Missouri.

Primary reference: E. L. Yochelson and L. M. Nuelle. 1985. Strepsodiscus (Gastropoda) in the Late Cambrian of Missouri. Journal of Paleontology 59(3):733-740 [M. Patzkowsky/P. Borkow/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8232: authorized by Mark Patzkowsky, entered by Phil Borkow on 30.06.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita indet. Walch 1771 trilobite
Gastropoda indet. Cuvier 1797 snail
 Bellerophontida - Tropidodiscidae
Strepsodiscus paucivoluta Calvin 1892 snail
 Tryblidiida - Tryblidiidae
Proplina indet. Kobayashi 1933