Richmondian Liberty Fm. (Ordovician of the United States)

Where: Franklin County, Indiana (39.4° N, 85.0° W: paleocoordinates 25.3° S, 58.4° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Liberty Formation, Richmondian (449.5 - 443.7 Ma)

• "Richmondian"

Environment/lithology: marine; packstone

• "5 cm thick shelly brach. packstone (1 exposure) BA3."

Size class: macrofossils

Primary reference: R. C. Frey. 1987. The paleoecology of a Late Ordovician shale unit from southwest Ohio and southeastern Indiana. Journal of Paleontology 61:242-267 [M. Uhen/J. Ju/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 377: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Frey, 1987b"
 Odontopleurida - Odontopleuridae
? Odontopleura sp. Emmrich 1839 trilobite
originally entered as "? Ondontopleura sp."
 Phacopida - Calymenidae
Flexicalymene sp. Shirley 1936 trilobite
 Strophomenida - Rafinesquinidae
Rafinesquina sp. Hall and Clarke 1892
 Strophomenida - Strophomenidae
Holtedahlina sp. Foerste 1924
Strophomena sp. Rafinesque and De Blainville 1824
 Atrypida - Anazygidae
Zygospira sp. Hall 1862
 Rhynchonellida - Rhynchotrematidae
Hiscobeccus sp. Amsden 1983
 Orthida - Plaesiomyidae
Plaesiomys sp. Hall and Clarke 1892
 Orthida - Plectorthidae
Hebertella sp. Hall and Clarke 1892
 Trepostomida -
 Cryptostomata - Arthrostylidae
Helopora sp. Hall 1851
 Dendrocrinida - Dendrocrinidae
Dendrocrinus sp. Hall 1852 Sea lily
 Monobathrida - Xenocrinidae
Xenocrinus sp. Miller 1881 Sea lily
 Stauriida - Streptelasmatidae
Grewingkia sp. Dybowski 1873 horn coral