USGS 6136-CO. Route 52 east of Balls Branch Run crossing (Ordovician of the United States)

Where: Boyle County, Kentucky (37.6° N, 84.7° W: paleocoordinates 27.5° S, 63.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Perryville Limestone Member (Lexington Limestone Formation), Chatfieldian (453.8 - 451.0 Ma)

• "Basal 3-4 ft of Perryville Limestone Member, immediately above Tanglewood Limestone Member, Lexington Limestone."

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, nodular, brown, gray limestone

• "The Faulconer Bed was deposited in shallow, quiet water of normal marine salinity."
• "40 ft of brownish-gray, fossiliferous, micritic limestone. Beds are about 0.5 ft thick, have rough surfaces, and show nodular internal structure upon weathering."

Size class: macrofossils

Preservation: replaced with silica

Primary reference: G.P. Wahlman. 1992. Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati Arch region. United States Geological Survey Professional Paper 1066(O):1-123 [P. Wagner/P. Wagner/E. Ito]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 100233: authorized by Pete Wagner, entered by Hallie Street on 02.12.2010, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "The fauna of the Faulconer Bed consists of ostracodes, pelecypods, gastropods, brachiopods, bryozoans, crinoids, colonial corals, and stromatoporoids.... encrusting algae (probably Girvanella)."
Show authors, comments, and common names
Trilobita
 Asaphida - Asaphidae
Isotelus sp.2
Isotelus sp.2 Dekay 1824 trilobite
Polyplacophora
 Paleoloricata -
Alastega martini1
Alastega martini1 Hoare and Pojeta 2006 chiton
Gastropoda
 Euomphalina - Holopeidae
Holopea insignis3
Holopea insignis3 Ulrich and Scofield 1897 snail
 Bellerophontida - Bellerophontidae
Bucanopsis carinifera, "Bellerophon (Bellerophon) bilineatus" = Sphenosphaera bilineatus
Bucanopsis carinifera Ulrich and Scofield 1897 snail
"Bellerophon (Bellerophon) bilineatus" = Sphenosphaera bilineatus Ulrich and Scofield 1897 snail
 Bellerophontida - Temnodiscidae
"Tropidodiscus subacutus" = Alaskadiscus subacutus
"Tropidodiscus subacutus" = Alaskadiscus subacutus Ulrich and Scofield 1897 snail
 Bellerophontida - Bucaniidae
Bucania sublata, "Bucania nashvillensis" = Loxobucania nashvillensis
Bucania sublata Ulrich and Scofield 1897 snail
"Bucania nashvillensis" = Loxobucania nashvillensis Ulrich and Scofield 1897 snail
1Hoare and Pojeta 2006; 2Ross 1979; 3Wagner 1990