USGS 5015-CO. Mitchellsburg Rd east side of Chaplin River, south of Perryville (Ordovician of the United States)

Where: Boyle County, Kentucky (37.6° N, 84.9° W: paleocoordinates 27.4° S, 63.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Measured from the base of the Salvisa Bed; Section No. 30B

• bed-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; 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 light-gray calcilutite [of the Salvisa Bed] resembles much of the limestone in the Tyrone Limestone" (Cressman, 1973, p. 25)

Size classes: macrofossils, mesofossils

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 99334: authorized by Pete Wagner, entered by Hallie Street on 08.11.2010, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Calymenidae
 Asaphida - Asaphidae
Isotelus gigas7 Dekay 1824 trilobite
 Proetida - Proetidae
Decoroproetus "sp. 2"7 Pribyl 1946 trilobite
 Lichida - Odontopleuridae
? Acidaspis "sp. a"7 Murchison 1839 trilobite
Primaspis "sp. y"7 Richter and Richter 1917 trilobite
Strophomenata
 Strophomenida - Glyptomenidae
Pionomena recens6 Neuman 1967
 Strophomenida - Strophomenidae
Furcitella cf. scofieldi6 Winchell and Schuchert 1892
Rhynchonellata
 Atrypida - Anazygidae
? Zygospira sp.3 Hall 1862
 Rhynchonellida - Rhynchotrematidae
 Orthida - Platystrophiidae
Rostroconchia
 Conocardiida - Bransoniidae
"Bransonia cressmani" = Pojetaconcha cressmani5
"Bransonia cressmani" = Pojetaconcha cressmani5 Pojeta and Runnegar 1976
Bivalvia
 Cyrtodontida - Cyrtodontidae
 Myalinida - Ambonychiidae
 Ostreida - Pterineidae
Palaeopteria aff. parvula2 Whiteaves 1897 oyster
 Modiomorphida - Modiomorphidae
Whiteavesia sp.2 Ulrich 1893 clam
Colpomya sp.2 Ulrich 1893 clam
 Unioni - Lyrodesmatidae
Lyrodesma sp.2 Conrad 1841 clam
Gastropoda
 Trochonematoidea - Lophospiridae
Lophospira perangulata8 Hall 1847 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 - Pterothecidae
Carinaropsis cymbula Hall 1861 snail
Tergomya
 Cyrtonellida - Cyrtolitidae
"Cyrtolites (Cyrtolites) retrorsus" = Cyrtolites retrorsus
"Cyrtolites (Cyrtolites) retrorsus" = Cyrtolites retrorsus Ulrich and Scofield 1897
 Tryblidiida - Proplinidae
Vallatotheca unguiformis Ulrich and Scofield 1897
Polyplacophora
 Paleoloricata -
Alastega martini2 Hoare and Pojeta 2006 chiton
 Paleoloricata - Preacanthochitonidae
Listrochiton weiri2 Hoare and Pojeta 2006 chiton
Cyclocystoidea
  - Cyclocystoididae
Cyclocystoides sp.4 Salter and Billings 1858