04-MTOR-A (Ordovician of the United States)

Where: Brown County, Ohio (39.0° N, 83.8° W: paleocoordinates 26.0° S, 57.7° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Oregonia Formation, Richmondian (449.6 - 445.5 Ma)

• C4 sequence

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, bioturbated, phosphatic, shelly/skeletal, gray packstone and lithified, gray mudstone

Preservation: mold/impression, original calcite, replaced with calcite

Primary reference: S. M. Holland and M.E. Patzkowsky. 2007. Gradient ecology of a biotic invasion: biofacies of the type Cincinnatian Series (Upper Ordovician), Cincinnati, Ohio region, USA. Palaios 22:408-423 [S. Holland/S. Holland]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 73120: authorized by Steven Holland, entered by Steven Holland on 04.06.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
 Monobathrida - Glyptocrinidae
Glyptocrinus sp. Hall 1847 Sea lily
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
thin_ramose
Stenolaemata
 Trepostomata -
Trepostomata indet. Ulrich 1882
bifoliate
Trepostomata indet. Ulrich 1882
ramose
Rhynchonellata
 Atrypida - Anazygidae
 Orthida - Platystrophiidae
 Orthida - Plectorthidae
Strophomenata
 Strophomenida - Rafinesquinidae
Bivalvia
 Myalinida - Ambonychiidae
Ambonychia sp. Hall 1847 clam
 Ostreida - Pterineidae
"Caritodens demissa" = Pterinea demissa
"Caritodens demissa" = Pterinea demissa Conrad 1842 oyster
Gastropoda
 Euomphalina - Platyceratidae
Cyclonema sp. Hall 1852 snail
Trilobita
 Asaphida - Asaphidae
Isotelus sp. Dekay 1824 trilobite
 Phacopida - Calymenidae
Flexicalymene sp. Shirley 1936 trilobite