8 miles east of Eminence (Ordovician of the United States)

Where: Shannon County, Missouri (37.1° N, 91.3° W: paleocoordinates 23.7° S, 81.9° W)

• outcrop-level geographic resolution

When: Van Buren Member (Gasconade Formation), Gasconadian (485.4 - 477.7 Ma)

• The Van Buren Formation (Bridge 1930) is now referred to in an interval sense with the Van Buren fauna comprising a zone in the lowerpart of the Gasconade Formation.

• formation-level stratigraphic resolution

Environment/lithology: lithified chert and 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 189357: authorized by Björn Kröger, entered by Björn Kröger on 13.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ellesmerocerida - Ellesmeroceratidae
Dakeoceras perretrorsum Ulrich et al. 1943
Dakeoceras divergens Ulrich et al. 1943
Dakeoceras dilatatum Ulrich et al. 1943
Dakeoceras corniculum Ulrich et al. 1943
Dakeoceras magnisiphonatum Ulrich et al. 1943
Dakeoceras normale Ulrich and Foerste 1931