USGS 4940-CO. Road expsure on w. side of Kentucky River, at bridge crossing of Central Kentucky Parkway on n. side of parkway, near Salvisa (Ordovician of the United States)

Where: Anderson County, Kentucky (38.0° N, 84.8° W: paleocoordinates 27.2° S, 63.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Curdsville Member (Lexington Formation), Turinian (457.3 - 453.8 Ma)

• above base of formation; Section No. 176

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified, phosphatic, shelly/skeletal, sandy, cherty/siliceous limestone and lithified, phosphatic, shelly/skeletal, sandy, cherty/siliceous packstone

• shallow, well-aertaed, mloderately agitated water of normal salinity.
• bioclastic calcarenite and calcirudite, which is sandy and chert bearing in part, and subordinate calcisiltite and irregularly bedded to nodular fossiliferous limestone.

Size class: macrofossils

Preservation: original silica

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: taxonomic analysis

PaleoDB collection 77354: authorized by Pete Wagner, entered by Pete Wagner on 09.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
 Flexibilia - Cupulocrinidae
Cupulocrinus sp.3
Cupulocrinus sp.3 d'Orbigny 1849 Sea lily
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella curdsvillensis2
Rhynchonellata
 Orthida - Platystrophiidae
Platystrophia colbiensis1
Gastropoda
 Bellerophontida - Sinuitidae
"Sinuites obesus" = Sinuites obesa4
"Sinuites obesus" = Sinuites obesa4 Ulrich and Scofield 1897 snail
1Alberstadt 1979; 2Howe 1979; 3Parsley 1981; 4Wahlman 1992