Cyrtospirifer-Camarotoechia 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 Fras-lower Famennian). Foreknobs- Briery Gap and Pound Sandstone Members"

Environment/lithology: offshore; sandstone

• "sandstone, medium to fine grained, well sorted. turbulent, shallow, offshore bar. possible fluctuating salinities (~= delta front sand). BA3"

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 635: authorized by Arnold Miller, entered by Mike Sommers on 06.04.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "McGhee, 1976"
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
pelmatozoans, not included in %
Gastropoda
 Streptoneura -
? Archaeogastropoda indet. Thiele 1925 snail
archaeogastropods - originally entered as "? Archaeogastropoda indet."
Bivalvia
 Cardiidia - Grammysiidae
Grammysia sp. de Verneuil 1847 clam
 Pholadomyida - Edmondiidae
Edmondia sp. de Koninck 1841 clam
 Modiomorphida - Modiomorphidae
Spathella sp. Hall 1885 clam
 Cardiida -
Cypricardella sp. Hall 1856 clam
 Myalinida - Ambonychiidae
Mytilarca sp. Hall and Whitfield 1869 clam
??
 Ostreida - Pterineidae
Leptodesma sp. Hall 1883 oyster
Strophomenata
 Productida - Productellidae
 Strophomenida - Douvillinidae
Rhynchonellata
 Spiriferida - Cyrtospiriferidae
Cyrtospirifer sp. Nalivkin 1924
 Spiriferida - Mucrospiriferidae
Tylothyris sp. North 1920
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893