Grier Ls Mbr, Lexington Ls, central KY, sec 61, switzer A (Ordovician of the United States)
Where: Kentucky (37.6° N, 84.8° W: paleocoordinates 28.1° S, 68.4° W)
• coordinate based on political unit
When: Grier Ls Member (Lexington Ls Formation), Middle Ordovician (470.0 - 458.4 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: limestone and shale
• EZ 2-3
• wavy, nodular, fossiliferous limestone and shale
Primary reference: E. R. Cressman. 1973. Lithostratigraphy and depositional environments of the Lexington Limestone (Ordovician) of central Kentucky. USGS Professional Paper 768:1-61 [M. Patzkowsky/M. Patzkowsky/P. Wagner]more details
PaleoDB collection 10745: authorized by Mark Patzkowsky, entered by Zack Krug on 18.06.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
unclassified | |
Gastropoda | |
Loxoplocus sp. Fischer 1885 snail | |
cf. Cyclora sp. Hall 1845 snail | |
cf. Microceras sp. Hall 1845 snail | |
Bivalvia | |
Colpomya sp. Ulrich 1893 clam | |
Palaeoconcha sp. Miller 1889 clam | |
Deceptrix sp. Fuchs 1919 clam | |
Strophomenata | |
Rafinesquina sp. Hall and Clarke 1892 | |
Rhynchonellata | |
Rhynchotrema sp. Hall 1860 | |
Hebertella sp. Hall and Clarke 1892 | |
Platystrophia sp. King 1850 | |
Zygospira sp. Hall 1862 | |
Stenolaemata | |
Constellaria sp. Dana 1846 | |
Dekayia sp. Milne-Edwards and Haime 1851 | |
Hallopora sp. Bassler 1911 | |
Eridotrypa sp. Ulrich 1893 | |
Cyphotrypa sp. Ulrich and Bassler 1904 | |
Ostracoda | |
? Milleratia sp. ostracod | |
cf. Ceratopsis sp. Ulrich 1894 ostracod | |
"Bollia" sp. Jones and Holl 1886 ostracod | |
Trilobita | |
Flexicalymene sp. Shirley 1936 trilobite |