3.5 miles northeast of Jasper (Ordovician to of the United States)

Where: Marion County, Tennessee (35.1° N, 85.6° W: paleocoordinates 28.8° S, 81.7° W)

• outcrop-level geographic resolution

When: Chepultepec Formation, Skullrockian to Skullrockian (485.4 - 478.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: cherty/siliceous dolomite

• heavy rotten and correnous chert.

Size classes: macrofossils, mesofossils

Preservation: recrystallized, original aragonite, replaced with silica

Primary reference: E. O. Ulrich, A. F. Foerste, and A.K. Miller. 1943. Ozarkian and Canadian cephalopods. Part II, Brevicones. Geological Society of America Special Papers 49:1-240 [P. Wagner/P. Wagner/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189395: authorized by Björn Kröger, entered by Björn Kröger on 16.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ellesmerocerida - Ellesmeroceratidae
Oneotoceras percurvatum Ulrich et al. 1943