Oepikina Beds, St. Clair School: Ashbyan, Virginia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Strophomenida - Sowerbyellidae
Ptychoglyptus sp. Willard 1928
Sowerbyella sp. Jones 1928
Strophomenata - Strophomenida - Leptellinidae
? Rafinesquina pulchella Raymond 1928
recombined as Apatomorpha pulchella
Raymond
Strophomenata - Strophomenida - Furcitellidae
Oepikina "minnesotensis" (Winchell 1881)
(Winchell)
Strophomenata - Strophomenida - Strophomenidae
Strophomena tennesseensis Willard 1928
recombined as Rhipidomena tennesseensis
Willard
Strophomenata - Strophomenida - Rafinesquinidae
? Rafinesquina sp. Hall and Clarke 1892
? Rafinesquina cf. deltoidea (Conrad 1838)
(Conrad)
Rhynchonellata - Pentamerida - Camerellidae
Camerella cf. varians Billings 1859
Billings [entered as Camarella varians]
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
"Camarotoechia" pristina Raymond 1905
recombined as Rostricellula pristina
Raymond
Rhynchonellata - Rhynchonellida - Sphenotretidae
Zygospira acutirostris (Hall 1847)
recombined as Sphenotreta acutirostris
(Hall)
Rhynchonellata - Rhynchonellida - Camarotoechiidae
Camarotoechia quadriplicata
Willard
Rhynchonellata - Orthida - Plaesiomyidae
Dinorthis cf. interstriata Willard 1928
Willard
Dinorthis transversa Willard 1928
Willard
Dinorthis quadriplicata Willard 1928
synonym of Dinorthis transversa
Willard
Multicostella brevis
(Willard)
Multicostella platys (Billings 1859)
(Billings)
Rhynchonellata - Orthida - Glyptorthidae
Glyptorthis bellarugosa (Conrad 1843)
(Conrad)
Rhynchonellata - Orthida - Plectorthidae
Mimella melonica
(Willard)
Mimella vulgaris (Raymond 1911)
(Raymond)
Mimella superba Butts 1942
synonym of Mimella globosa
Butts
Plectorthis cf. exfoliata (Raymond 1905)
recombined as Orthambonites exfoliata
Raymond
Stenolaemata - Cystoporata - Ceramoporidae
Anolotichia cf. explanata
Coryell
Stenolaemata - Cryptostomata - Rhinidictyidae
Pachydictya sp. Ulrich 1882
Gastropoda - Euomphalina - Macluritidae
Maclurites magnus (Le Sueur 1818)
Lesueur
Gastropoda - Euomphalina - Holopeidae
Holopea scrutator Raymond 1905
Raymond
Ostracoda - Hollinocopida - Eurychilinidae
Eurychilina cf. latimarginata (Raymond 1905)
(Raymond)
Ostracoda - Leperditicopida - Leperditiidae
Leperditia sp. Rouault 1851
Trilobita - Corynexochida - Illaenidae
Illaenus fieldi Raymond 1925
Raymond
Bumastus cf. lioderma Raymond 1925
Raymond
Trilobita - Phacopida - Pterygometopidae
Calliops cf. annulatus (Raymond 1905)
(Raymond)
Trilobita - Asaphida - Asaphidae
Homotelus elongatus Raymond 1920
Raymond
Demospongiae - Sigmatosclerophorida - Dystactospongiidae
Dystactospongia sp. Miller 1882
Demospongiae - Streptosolenidae
Eospongia roemeri Billings 1861
Billings
Hormogoneae - Oscillatoriales - Girvanellaceae
see common names

Geography
Country:United States State/province:Virginia County:Tazewell
Coordinates: 37.2° North, 81.3° West (view map)
Paleocoordinates:29.6° South, 61.5° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4-5
Key time interval:Ashbyan
Age range of interval:457.00000 - 449.80000 m.y. ago
Stratigraphy
Formation:Benbolt Member:Shannondale Limestone
Stratigraphic resolution:member
Stratigraphy comments: Ashbyan, Oepikina beds
Lithology and environment
Primary lithology:gray argillaceous "limestone"
Includes fossils?Y
Lithology description: very argillaceous, nodular-weathering, dark-gray limestones which are best developed in the eastern half of the county
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:Benbolt Formation, Shannondale Limestone Member, Oepikina Beds, St. Clair School
Database number:33983
Authorizer:S. Holland Enterer:T. Hanson
Modifier:P. Wagner Research group:marine invertebrate
Created:2003-08-11 12:48:33 Last modified:2019-08-08 22:26:02
Access level:the public Released:2003-08-11 12:48:33
Creative Commons license:CC BY
Reference information

Primary reference:
8880. B. N. Cooper and C. E. Prouty. 1943. Stratigraphy of the Lower Middle Ordovician of Tazewell County, Virginia. Bulletin of the Geological Society of America 54:819-886 [S. Holland/T. Hanson/T. Hanson]