Wardell Formation, Tazewell, Receptaculites beds: Caradocian, Virginia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Hormogoneae - Oscillatoriales - Girvanellaceae
Chlorophyceae - Receptaculitidae
Receptaculites biconstrictus
Ulrich
Bivalvia - Cyrtodontida - Cyrtodontidae
Vanuxemia cf. crassa
Ulrich
Strophomenata - Strophomenida - Strophomenidae
Strophomena ? incurvata (Shephard 1838)
(Shepard)
Strophomenata - Strophomenida - Glyptomenidae
Strophomena emaciata Winchell and Schuchert 1892
recombined as Pionomena emaciata
Winchell and Schuchert
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
? Camarotoechia plena (Hall 1847)
recombined as Rostricellula plena
(Hall)
Rhynchonellata - Orthida - Plaesiomyidae
Valcourea cf. deflecta (Conrad 1843)
recombined as Campylorthis deflecta
(Conrad)
Rhynchonellata - Orthida - Glyptorthidae
Glyptorthis sp. Foerste 1914
Rhynchonellata - Orthida - Plectorthidae
Mimella globosa (Willard 1928)
(Willard)
Rhynchonellata - Orthida - Draboviidae
? Pionodema subaequata (Conrad 1843)
subsp. circularis (Winchell)
Stenolaemata - Cystoporata - Ceramoporidae
Scenellopora radiata Ulrich 1882
Ulrich
Stenolaemata - Cryptostomata - Rhinidictyidae
Pachydictya sp. Ulrich 1882
Stenolaemata - Cryptostomata - Escharoporidae
Graptodictya sp. Ulrich 1882
Escharopora ? subrecta Ulrich 1886
(Ulrich)
Stenolaemata - Trepostomata - Trematoporidae
Batostoma sevieri
Bassler
Stenolaemata - Trepostomata - Dittoporidae
Hemiphragma sp. Ulrich 1893
Ostracoda - Leperditicopida - Isochilinidae
Isochilina armata
(Walcott)
Trilobita - Corynexochida - Illaenidae
Illaenus conradi Billings 1859
recombined as Thaleops conradi
Billings
Trilobita - Phacopida - Pterygometopidae
Calliops cf. callicephalus (Hall 1847)
recombined as Calyptaulax callicephalus
(Hall)
Crinoidea - Porocrinida
Carabocrinus sp. Billings 1857
Rhombifera - Caryocystitidae
Caryocystites sp. Buch 1844
see common names

Geography
Country:United States State/province:Virginia County:Tazewell
Coordinates: 37.1° North, 81.5° West (view map)
Paleocoordinates:29.6° South, 61.8° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4
Key time interval:Caradocian
Age range of interval:460.90000 - 449.50000 m.y. ago
Stratigraphy
Formation:Wardell
Stratigraphic resolution:formation
Stratigraphy comments: Blackriveran; Receptaculites biconstrictus beds
Lithology and environment
Primary lithology:fine,gray argillaceous "limestone"
Includes fossils?Y
Lithology description: drab-gray fine-grained argillaceous limestones which weather nodular and bright buff, wavy seams of buff-weathering shale surround lenticular nodules of fairly pure, fine-grained limestone; the weathered limestone nodules form a loose rubble and, because of this nodular character, the contacts with overlying and undelying beds are sharp.
Environment:carbonate indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:34251
Authorizer:S. Holland Enterer:T. Hanson
Modifier:S. Holland Research group:marine invertebrate
Created:2003-08-22 14:54:58 Last modified:2005-03-19 17:12:16
Access level:the public Released:2003-08-22 14:54:58
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]