USGS 5073-CO; Old Crow Distillery, Frankfort East B section (Ordovician of the United States)

Where: Franklin County, Kentucky (38.1° N, 84.9° W: paleocoordinates 27.1° S, 63.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Logana Limestone Member (Lexington Limestone Formation), Chatfieldian (460.9 - 449.5 Ma)

• "Upper part of the Logana Member, Lexington Limestone [...] Just below 4-ft-thick dalmanellid coquina."; Section name: Frankfort East B; Section no. 87; "Just below 4-ft-thick dalmanellid coquina"

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; tabular, argillaceous limestone and shale

• "Cressman (1973) indicated that the Logana Member represented the height of the initial marine transgression, deposited under quiet-water conditions at water depths below wave base";

•sequence stratigraphy is according to McLaughlin et al. (2004, Palaeogeogr. Palaeoclimat. Palaeoecol., 210)

• " [...] interbedded, thin, planar, argillaceous limestone and shale [...] up to 50 ft thick [...] containing a more sparse fauna of dalmanellid brachiopods, bryozoans, pelecypods, univalved mollusks, and nautiloids."

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: bulk, acetic,

• " [...] specimens were obtained from bulk rock collections (36,000 pounds (lbs) of limestone) made by USGS field parties in the 1960's and 1970's." This statement not only applies to the Frankfort East B locality. For further details on collection methods see p. P22 in the primary reference

Primary reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126 [S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87820: authorized by Björn Kröger, entered by Torsten Liebrecht on 25.03.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• see comments on lithology
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Rostricellula minuta1 Cooper 1956
 Orthida - Dalmanellidae
Dalmanella sulcata3 Cooper 1956
Gastropoda
 Bellerophontida - Sinuitidae
Sinuites obesa2 Ulrich and Scofield 1897 snail
Tergomya
 Cyrtonellida - Cyrtolitidae
"Cyrtolites (Cyrtolites) retrorsus" = Cyrtolites retrorsus2
"Cyrtolites (Cyrtolites) retrorsus" = Cyrtolites retrorsus2 Ulrich and Scofield 1897
Cephalopoda
 Orthocerida - Proteoceratidae
Isorthoceras albersi Miller and Faber 1894
USNM 468700 (suite of specimens, no exact number given)
Gorbyoceras cf. tetreauense Wilson 1961
USNM 468707