Loc. H-2: Nr. Old Mines, (Cambrian of the United States)

Where: Shannon County, Missouri (37.9° N, 90.8° W: paleocoordinates 22.8° S, 86.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Plethopeltis Zone Member (Eminence Formation), Trempealeauan (501.0 - 485.4 Ma)

• The chert in which the fossils occur may or may not be in place stratigraphically. So, a rating of "A" through "F" indicates stratigraphi reliability with "A" = no question as to stratigraphic position of horizon and "F" = residual material of different ages. RATING: C

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, red chert

• Orange-red cherts w/ large stromatolites

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: B.L. Stinchcomb and G. Darrough. 1995. Some molluscan problematica from the Upper Cambrian - Lower Ordovician of the Ozark uplift. Journal of Paleontology 69(1):52-65 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64586: authorized by Pete Wagner, entered by Pete Wagner on 10.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• The taxonomic list may not include unbublished taxa and stromatolites that are found in the formation/collection but are not described in the literature.
Gastropoda
 Eogastropoda - Sinuopeidae
Schizopea normalis Ulrich et al. 1931 snail
Polyplacophora
 Paleoloricata - Mattheviidae
"Elongata perplexa n. gen. n. sp." = Hemithecella eminensis, "Hemithecella elongata n. sp." = Hemithecella eminensis
"Elongata perplexa n. gen. n. sp." = Hemithecella eminensis Stinchcomb and Darrough 1995 chiton
"Hemithecella elongata n. sp." = Hemithecella eminensis Stinchcomb and Darrough 1995 chiton