5 miles NW of Hermansville (Ordovician of the United States)

Where: Menominee County, Michigan (45.7° N, 87.6° W: paleocoordinates 22.3° S, 72.2° W)

• coordinate estimated from map

When: Oneota Dolomite Formation, Tremadocian (485.4 - 477.7 Ma)

Environment/lithology: dolomite

Size classes: macrofossils, mesofossils

Preservation: recrystallized, original aragonite

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 189322: authorized by Björn Kröger, entered by Björn Kröger on 11.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ellesmerocerida - Ellesmeroceratidae
Caseoceras intermedium Ulrich et al. 1943
Caseoceras contractum Ulrich et al. 1943
Caseoceras nitidum Ulrich et al. 1943
Oneotoceras divaricatum Ulrich et al. 1943
Oneotoceras husseyi Ulrich et al. 1943
Oneotoceras magnum Ulrich et al. 1943
Oneotoceras curvatum Ulrich et al. 1943
Oneotoceras impressum Ulrich et al. 1943