Lewistown, PA (Locality 4), Onondaga Limestone (Devonian of the United States)
Where: Mifflin County, Pennsylvania (40.6° N, 77.6° W: paleocoordinates 41.0° S, 25.5° W)
• outcrop-level geographic resolution
When: Onondaga Formation, Eifelian (393.3 - 387.7 Ma)
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; green, calcareous shale
• much weathered, olive-green, thinly laminated, calcareous shale
Primary reference: F. M. Swain, Jr. 1939. Some Faunas from the Onondaga Formation in Central Pennsylvania and West Virginia. M.S. thesis, Pennsylvania State University 1-100 [A. Miller/K. Layou]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 9523: authorized by Arnold Miller, entered by Karen Layou on 11.12.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| unclassified | |
| Anthozoa | |
"Zaphrentis sp." = Zaphrenthis
"Zaphrentis sp." = Zaphrenthis Rafinesque and Clifford 1820 horn coral | |
| Craniata | |
"Pholidops sp." = Craniops
"Pholidops sp." = Craniops Hall 1859 | |
| Strophomenata | |
"Stropheodonta sp." = Strophomena (Strophodonta)
"Stropheodonta sp." = Strophomena (Strophodonta) Hall 1852 | |
|
Chonetes sp. Fischer de Waldheim 1830 | |
| Ostracoda | |
|
Parabolbina cardocornella ostracod
Parabolbina obliqua ostracod | |
|
Thlipsura ultimata ostracod
Thlipsurella semipunctata ostracod | |
|
Ponderodictya favulosa ostracod | |
|
Octonaria dicristata ostracod | |
|
Bythocypris sp. Brady 1880 ostracod | |
|
Cavellina planoprocliva ostracod | |
|
Aparchites subrotunda ostracod | |
|
Bollia hindei ostracod
Bollia planofibra ostracod
Bollia hama ostracod
Bollia spinomuralis ostracod
Ulrichia elongata ostracod | |
|
Aechmina sp. Jones and Holl 1869 ostracod | |