USGS 6915-CO. Boyle County Quarry northeast of Perryville (Ordovician of the United States)

Where: Boyle County, Kentucky (37.7° N, 84.9° W: paleocoordinates 27.4° S, 63.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• Section no. 30A; "Basal 2 ft of Salvisa Bed; northwestern wall of quarry."

• bed-level stratigraphic resolution

Environment/lithology: lithified, burrowed, brown, gray limestone

• "10 to 15 ft of interbedded light-gray to light-olive-gray micritic limestone and brownish-gray micritic limestone.... The matrix is largely pelletal and is and is burrowed in many places."

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Reposited in the USNM

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 100288: authorized by Pete Wagner, entered by Hallie Street on 07.12.2010, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Asaphidae
Isotelus sp.2 Dekay 1824 trilobite
 Lichida - Odontopleuridae
Primaspis "sp. F"2 Richter and Richter 1917 trilobite
Gastropoda
 Trochonematoidea - Lophospiridae
Paupospira sumnerensis3 Safford 1869 snail
 Bellerophontida - Bellerophontidae
Bucanopsis carinifera Ulrich and Scofield 1897 snail
"Sphenosphaera clausus" = Sphenosphaera rogersensis Foerste 1914 snail
 Bellerophontida - Bucaniidae
"Bucania nashvillensis" = Loxobucania nashvillensis
"Bucania nashvillensis" = Loxobucania nashvillensis Ulrich and Scofield 1897 snail
 Bellerophontida - Tropidodiscidae
"Tropidodiscus subacutus" = Alaskadiscus subacutus
"Tropidodiscus subacutus" = Alaskadiscus subacutus Ulrich and Scofield 1897 snail
 Murchisoniina - Eotomariidae
Liospira progne3 Billings 1860 snail
 Murchisoniina - Murchisoniidae
"Hormotoma salteri" = Cyrtostropha salteri3
"Hormotoma salteri" = Cyrtostropha salteri3 Ulrich and Scofield 1897 snail
Tergomya
 Tryblidiida - Proplinidae
Vallatotheca unguiformis Ulrich and Scofield 1897
Polyplacophora
 Paleoloricata -
Alastega martini n. sp.1 Hoare and Pojeta 2006 chiton
 Paleoloricata - Preacanthochitonidae
Listrochiton weiri n. gen. n. sp.1
Listrochiton weiri n. gen. n. sp.1 Hoare and Pojeta 2006 chiton
Rhynchonellata
 Orthida - Plectorthidae