Witten Limestone, Maxwell, Camarocladia beds: Caradoc, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Strphomena incurvata
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| (Shepard) | ||||||||||
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Camarocladia gracilis
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Ostracoda
- Leperditicopida
- Isochilinidae
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Isochilina armata
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| (Walcott) | ||||||||||
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Ostracoda
- Palaeocopida
- Leperditellidae
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Leperditella sulcata
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| (Ulcata) | ||||||||||
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Ostracoda
- Podocopida
- Bairdiidae
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Krausella arcuata
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| Ulrich | ||||||||||
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Trilobita
- Phacopida
- Pterygometopidae
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Calyptaulax confluens
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| (Foerste) | ||||||||||
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Orthoceras multicameratum
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| Emmons | ||||||||||
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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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Gastropoda
- Euomphalina
- Helicotomidae
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Helicotoma cf. granosa
Ulrich and Scofield 1897
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| Ulrich | ||||||||||
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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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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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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira recurvirostris
(Hall 1847)
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| recombined as Anazyga recurvirostra | ||||||||||
| (Hall) | ||||||||||
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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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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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Rhinidictya nicholsoni
Ulrich 1882
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| recombined as Stictopora nicholsoni | ||||||||||
| Ulrich | ||||||||||
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Phyllodictya frondosa
Ulrich 1882
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| Urlch | ||||||||||
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Orbignyella sp.
Ulrich and Bassler 1904
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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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Buthotrephis inosculata
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| replaced by Bythotrephis | ||||||||||
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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, 81.6° 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, Camarocladia beds | |||||
Lithology and environment
| Primary lithology: | fine,gray "limestone" |
| Secondary lithology: | coarse "limestone" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Even-bedded, dense, fine-grained limestones; golden gray prevails, but locally dark dove grays, hyacinth grays, and light beige grays predominate. Weathered surcfaces are considerably lighter than the fresh rock. The thickness varies from 45 to 75 feet and averages about 60 feet. Thin ribbon beds of coarse-grained limestone form minor intercalations. | |
| 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: | 34328 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2003-08-26 17:19:30 | Last modified: | 2024-03-31 19:20:47 |
| Access level: | the public | Released: | 2003-08-26 17:19:30 |
| 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] |