Cummingsville Fm, MN - Patzkowsky (Ordovician of the United States)

Where: Minnesota (44.0° N, 92.5° W: paleocoordinates 19.6° S, 67.1° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Cummingsville Formation, Middle Ordovician (470.0 - 458.4 Ma)

• EZ 3-4

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, argillaceous limestone

• fine-grained argillaceous limestone, thin and wrinkley bedded, shaly partings.

Primary reference: R. E. Sloan and D. R. Kolata. 1987. The Middle and Late Ordovician strata and fossils of southeastern Minnesota. Minnesota Geological Survey, University of Minnesota Guidebook Series (15)70-96 [M. Patzkowsky/Z. Krug]more details

PaleoDB collection 10754: authorized by Mark Patzkowsky, entered by Zack Krug on 19.06.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Fisherities sp.
Fisherities sp.
=Receptaculites
Anthozoa
 Stauriida - Streptelasmatidae
Streptelasma sp.
Streptelasma sp. Hall 1847 horn coral
Stenolaemata
 Cryptostomata - Rhinidictyidae
Rhinidictya sp.
Rhinidictya sp. Ulrich 1882
 Trepostomata - Trematoporidae
Batostoma sp.
Batostoma sp. Ulrich 1882
 Trepostomida - Amplexoporidae
Monotrypa sp.
Monotrypa sp. Nicholson 1879
 Trepostomida - Monticuliporidae
Aspidopora sp., Prasopora sp.
Aspidopora sp. Ulrich 1882
Prasopora sp. Nicholson and Etheridge 1877
Rhynchonellata
 Orthida - Dalmanellidae
Paucicrura sp.
Paucicrura sp. Cooper 1956
 Orthida - Platystrophiidae
Platystrophia sp.
 Orthida - Plectorthidae
Plectorthis sp.
Plectorthis sp. Hall and Clarke 1892
 Orthida - Plaesiomyidae
Dinorthis sp.
Dinorthis sp. Hall and Clarke 1892
=Plaesiomys
 Orthida - Glyptorthidae
Glyptorthis sp.
Glyptorthis sp. Foerste 1914
 Rhynchonellida - Rhynchotrematidae
Rhynchotrema sp.
Rhynchotrema sp. Hall 1860
Strophomenata
 Billingsellida - Clitambonitidae
Vellamo sp.
Vellamo sp. Opik 1930
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
 Strophomenida - Rafinesquinidae
Rafinesquina sp.
Rafinesquina sp. Hall and Clarke 1892
Gastropoda
 Bellerophontida - Bucaniidae
Salpingostoma sp.
Salpingostoma sp. Roemer 1876 snail
 Murchisoniina - Hormotomidae
Hormotoma sp.
Hormotoma sp. Salter 1859 snail
Trilobita
 Corynexochida - Illaenidae
Illaenus sp., Bumastus sp.
Illaenus sp. Dalman 1827 trilobite
Bumastus sp. Murchison 1839 trilobite