Clays Ferry - Kentucky: Cressman's member listing (Ordovician of the United States)

Where: Kentucky (38.0° N, 84.7° W: paleocoordinates 27.3° S, 63.2° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Clays Ferry Formation, Chatfieldian (460.9 - 449.5 Ma)

• member-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified, shelly/skeletal packstone and lithified, gray shale

• environmental call based on field notes of Holland and Patzkowsky

Size class: macrofossils

Preservation: original calcite

Reposited in the USNM

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34563: authorized by Steven Holland, entered by Steven Holland on 09.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Calymenidae
? Gravicalymene sp. Shirley 1936 trilobite
 Phacopida - Cheiruridae
? Ceraurus sp. Green 1832 trilobite
 Asaphida - Asaphidae
? Isotelus sp. Dekay 1824 trilobite
 Asaphida - Trinucleidae
? Cryptolithus sp. Green 1832 trilobite
 Proetida - Proetidae
"Proetidella sp." = Decoroproetus
"Proetidella sp." = Decoroproetus Pribyl 1946 trilobite
 Lichida - Odontopleuridae
Acidaspis sp. Murchison 1839 trilobite
Ostracoda
 Palaeocopida -
Bivalvia
 Myalinida - Ambonychiidae
"Ambonychia cf. radiata" = Byssonychia radiata
"Ambonychia cf. radiata" = Byssonychia radiata Hall 1847 clam
 Nuculida - Praenuculidae
Palaeoconcha sp. Miller 1889 clam
Gastropoda
 Trochonematoidea - Lophospiridae
Loxoplocus sp. Fischer 1885 snail
Loxoplocus (Lophospira)
 Bellerophontida - Sinuitidae
? Sinuites sp. Koken 1896 snail
 Bellerophontida - Tropidodiscidae
Tropidodiscus sp. Meek and Worthen 1866 snail
 Murchisoniina - Eotomariidae
Liospira sp. Ulrich and Scofield 1897 snail
Tergomya
 Cyrtonellida - Cyrtolitidae
Cyrtolites sp. Conrad 1838
Cephalopoda
 Actinocerida - Ormoceratidae
Orthonybyoceras sp. Shimizu and Obata 1935
Stenolaemata
 Trepostomida -
 Cystoporida -
 Cryptostomata - Ptilodictyonidae
Escharopora sp. Hall 1847
 Cryptostomata - Rhinidictyidae
Stictopora sp. Hall 1847
 Cryptostomata - Escharoporidae
"Arthropora sp." = Graptodictya
"Arthropora sp." = Graptodictya Ulrich 1882
 Trepostomata - Heterotrypidae
? Heterotrypa sp. Nicholson 1879
Heterotrypa cf. frondosa Dorbigny 1850
 Trepostomata - Halloporidae
 Trepostomata - Dittoporidae
Hemiphragma sp. Ulrich 1893
 Trepostomata - Monticuliporidae
Homotrypa sp. Ulrich 1882
 Trepostomata - Trematoporidae
 Cystoporata - Ceramoporidae
? Ceramoporella sp. Ulrich 1882
 Cystoporata -
Strophomenata
 Strophomenida - Sowerbyellidae
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Atrypida - Anazygidae
"Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847
 Orthida - Dalmanellidae
Dalmanella sp. Hall and Clarke 1892
"Dalmanella multisecta" = Cincinnetina multisecta James 1871
 Orthida - Glyptorthidae
Glyptorthis sp. Foerste 1914
Eridorthis sp. Foerste 1909
 Orthida - Platystrophiidae
 Orthida - Plectorthidae
Hebertella sp. Hall and Clarke 1892