Ulrich Loc. 435-k. 5 miles north of Winona on road to Eminence (Ordovician of the United States)

Where: Shannon County, Missouri (37.1° N, 91.4° W: paleocoordinates 23.7° S, 81.9° W)

• outcrop-level geographic resolution

When: Rossodus manitouensis conodont zone, Gasconade Dolomite Formation, Tremadocian (485.4 - 477.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: dolomite

Size classes: macrofossils, mesofossils

Preservation: 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 189372: authorized by Björn Kröger, entered by Björn Kröger on 13.10.2017, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pentamerida - Clarkellidae
Syntrophina missouriensis1
Uppermost Gasconade
 Euomphalina - Ophiletidae
"Ophileta leo" = Ophileta rotuliformis2
"Ophileta leo" = Ophileta rotuliformis2 Meek 1871 snail
Wagner 1991 Summer Research Notes Smithsonian
 Eogastropoda - Sinuopeidae
Euconia conicus2 Heller 1954 snail
Wagner 1991 Summer Research Notes Smithsonian
 Ellesmerocerida - Ellesmeroceratidae
Levisoceras obliquatum Ulrich et al. 1943