Also known as Locality M-4, Gasconade Formation, Crawford County, Missouri - Stinchcomb 1986
Where: Crawford County, Missouri (37.9° N, 91.2° W: paleocoordinates 23.5° S, 81.0° W)
• outcrop-level geographic resolution
When: Ophileta zone, Gasconade Formation, Tremadoc (486.5 - 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. The chert in which the fossils occur may or may not be in place stratigraphically. So, a rating of "A" through "F" indicates stratigraphic reliability with "A" = no question to stratigraphic position of horizon and "F" = residual material of different ages. Reliability Index = E
• formation-level stratigraphic resolution
Environment/lithology: reef, buildup or bioherm; lithified chert
Size classes: macrofossils, mesofossils
Preservation: original calcite, replaced with silica
Collection methods: Taxonomic list does not include stromatolites in which specimens were found.
Primary reference: B. L. Stinchcomb. 1986. New Monoplacophora (Mollusca) from Late Cambrian and Early Ordovician of Missouri. Journal of Paleontology 60(3):606-626 [M. Patzkowsky/P. Borkow/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 8940: authorized by Mark Patzkowsky, entered by Phil Borkow on 07.09.2000, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Tergomya | |
Titanoplina meramecensis1 Stinchcomb and Angeli 2002 | |
Hypseloconus recurvus Berkey 1898 | |
Gastropoda | |
| |
Polyplacophora | |
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