Where: Washington County, Virginia (36.8° N, 82.3° W: paleocoordinates 19.9° S, 30.6° W)
• coordinate stated in text
• local area-level geographic resolution
When: Little Valley Formation, Meramecian (343.0 - 335.5 Ma)
• On Geolex page, Little Valley was assigned as member of the Greenbrier Fm. by Nolde, 1994, and listed as Meramecian age. The Greenbrier is assigned to the Meramecian - Chesterian age, thus I decided that the Little Valley is probably Late Meramec (= Holkerian - Asbian).
• formation-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, ooidal, argillaceous, sandy, cherty/siliceous limestone and shale
Primary reference: C. S., J.r. Bartlett and H. W. Webb. 1971. Geology of the Bristol and Wallace quadrangles, Virginia. Virginia Division of Mineral Resources Report of Investigations 25:1-93 [J. Alroy/M. Sommers/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 6999: authorized by John Alroy, entered by Mike Sommers on 20.04.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Ostracoda | |
Graphiadactyllis sp. ostracod | |
Cephalopoda | |
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Gastropoda | |
Meekospira sp. Ulrich and Scofield 1897 snail | |
Bivalvia | |
Nuculana sp. Link 1807 pointed nut clam | |
Phestia sp. Chernyshev 1951 clam | |
? Nuculites sp. Conrad 1841 clam | |
Edmondia sp. de Koninck 1841 clam
Allorisma sp. King 1844 clam | |
Grammysia sp. de Verneuil 1847 clam | |
Wilkingia sp. Wilson 1959 clam | |
Megambonia sp. Hall 1859 clam | |
Aviculopecten sp. M'Coy 1851 scallop
Aviculopecten monroensis scallop | |
Caneyella sp. Girty 1910 oyster | |
Posidonia becheri Bronn 1828 oyster | |
Hyolitha | |
Hyolithes sp. d'Eichwald 1840 | |
Stenolaemata | |
Strophomenata | |
"Productus (Linoproductus) altonensis" = Linoproductus altonensis
"Productus (Linoproductus) altonensis" = Linoproductus altonensis Norwood and Pratten 1855 sgn. (Linoproductus)
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Rhynchonellata | |
Athyris lamellosa Léveillé 1835
Composita cf. subquadrata Hall 1858 | |
Anthracospirifer cf. leidyi Norwood and Pratten 1855 | |
Lingulata | |
Orbiculoidea sp. d'Orbigny 1847 | |
Crinoidea | |
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Anthozoa | |
Zaphrentites sp. Hudson 1941 horn coral
Neozaphrentis sp. Grove 1935 horn coral | |
Syringopora virginica tabulate coral |