Witten Limestone, west of Tazewell, Cryptophragmus beds: Caradoc, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Orthoceras multicameratum
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| Emmons | ||||||||||
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Gastropoda
- Murchisoniina
- Trochonematidae
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Trochonema umbilicatum
(Hall 1847)
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| recombined as Trochonema umbilicata | ||||||||||
| (Hall) | ||||||||||
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Gastropoda
- Murchisoniina
- Loxonematidae
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Omospira cf. laticincta
Ulrich and Scofield 1897
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| Ulrich | ||||||||||
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Gastropoda
- Euomphalina
- Helicotomidae
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Helicotoma cf. granosa
Ulrich and Scofield 1897
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| Ulrich | ||||||||||
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Gastropoda
- Euomphalina
- Macluritidae
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Maclurites bigsbyi
(Hall 1861)
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| recombined as Maclurina bigsbyi | ||||||||||
| (Hall) | ||||||||||
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Stenolaemata
- Cryptostomata
- Escharoporidae
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Escharopora sp.
Hall 1847
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Graptodictya sp.
Ulrich 1882
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Phyllodictya frondosa
Ulrich 1882
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| Ulrich | ||||||||||
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Rhinidictya nicholsoni
Ulrich 1882
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| recombined as Stictopora nicholsoni | ||||||||||
| Ulrich | ||||||||||
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Orbignyella sp.
Ulrich and Bassler 1904
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena incurvata
(Shephard 1838)
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| (Shepard) | ||||||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella cf. lebanonensis
Bassler 1932
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| Bassler | ||||||||||
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira recurvirostris
(Hall 1847)
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| recombined as Anazyga recurvirostra | ||||||||||
| (Hall) | ||||||||||
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Rhynchonellata
- Orthida
- Hesperorthidae
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Hesperorthis cf. tricenaria
(Conrad 1843)
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| (Conrad) | ||||||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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Doleroides sp.
Cooper 1930
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Rhynchonellata
- Orthida
- Draboviidae
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Pionodema miniscula
(Willard 1928)
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| original and current combination Pionodema minuscula | ||||||||||
| Willard | ||||||||||
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Ostracoda
- Podocopida
- Bairdiidae
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Krausella arcuata
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| Ulrich | ||||||||||
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Ostracoda
- Palaeocopida
- Leperditellidae
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Leperditella sulcata
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| (Ulrich) | ||||||||||
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Ostracoda
- Leperditicopida
- Isochilinidae
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Isochilina armata
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| (Walcott) | ||||||||||
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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Trilobita
- Phacopida
- Pterygometopidae
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Calyptaulax confluens
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| (Foerste) | ||||||||||
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Stromatoporoidea
- Labechiida
- Aulaceratidae
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Cryptophragmus antiquatus
Raymond 1914
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| Raymond | ||||||||||
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unclassified
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Tetradium cellulosum
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| (Hall) | ||||||||||
| 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 4-5 | ||
| Key time interval: | Caradoc | ||
| Age range of interval: | 458.40000 - 449.60000 m.y. ago |
Stratigraphy
| Formation: | Witten Limestone | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Blackriveran, Cryptophragmus beds | |||||
Lithology and environment
| Primary lithology: | coarse "limestone" |
| Includes fossils? | Y |
| Lithology description: 10 to 25 feet thick (18 feet thick average) ribbon-bedded coarse-grained coquina limestone. | |
| Environment: | carbonate indet. |
Taphonomy
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 34277 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2003-08-25 16:11:13 | Last modified: | 2024-03-31 19:20:47 |
| Access level: | the public | Released: | 2003-08-25 16:11:13 |
| 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] |