Atrypa-Cypricardella community, Foreknobs Fm. (Devonian to of the United States)

Where: Virginia (39.4° N, 78.7° W: paleocoordinates 34.6° S, 27.8° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Foreknobs Formation, Frasnian to Frasnian (382.7 - 358.9 Ma)

• "upper Dev (upper Fras-lower Famennian)"

Environment/lithology: offshore; gray sandstone and siltstone

• "med to f.g. poorly sorted light gray ss/sltst, broad, flat sublittoral zone, seaward of Cyrtos-Camar. community, probably gentle gradient. BA4"

Size class: macrofossils

Primary reference: G. R. McGhee. 1976. Late Devonian benthic marine communities of the central Appalachian Allegheny Front. Lethaia 9:111-136 [L. Ivany/L. Ivany/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 665: authorized by Arnold Miller, entered by Mike Sommers on 06.04.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "McGhee, 1976"
Bivalvia
 Pholadomyida - Edmondiidae
Edmondia sp. de Koninck 1841 clam
 Cardiida -
Cypricardella sp. Hall 1856 clam
 Myalinida - Ambonychiidae
Mytilarca sp. Hall and Whitfield 1869 clam
 Ostreida - Pterineidae
Cornellites sp. Williams 1908 oyster
Leptodesma sp. Hall 1883 oyster
 Nuculanida - Malletiidae
Palaeoneilo sp. Hall and Whitfield 1869 clam
Stenolaemata
 Cryptostomata - Fenestellidae
Fenestrellina sp. d'Orbigny 1849
not quantified minor%
 Rhabdomesida - Rhomboporidae
Rhombopora sp. Meek 1872
not quantified minor%
Strophomenata
 Strophomenida - Douvillinidae
 Productida - Productellidae
Rhynchonellata
 Spiriferida - Cyrtospiriferidae
Cyrtospirifer sp. Nalivkin 1924
 Orthida - Dalmanellidae
 Orthida - Schizophoriidae
Schizophoria sp. King 1850
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
pelmatozoans, not quantified minor%