Offshore zone -2, Durham Quadrangle, north of Cooper Heights: Caradoc, Georgia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Tetradium columnare
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Anthozoa
- Favositida
- Favositidae
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Favosites sp.
Lamarck 1816
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Anthozoa
- Stauriida
- Stauriidae
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Favistella sp.
Dana 1846
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Favistella halli
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Anthozoa
- Stauriida
- Columnariidae
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Columnaria (Favistella) halli
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira sp.
Whitfield 1886
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Gastropoda
- Murchisoniina
- Eotomariidae
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Liospira sp.
Ulrich and Scofield 1897
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Orthoceras sp.
Breynius 1832
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella sp.
Jones 1928
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena incurvata
(Shephard 1838)
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Strophomena planumbona
(Hall 1847)
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| Hall | ||||||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina sp.
Hall and Clarke 1892
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Strophomenata
- Orthotetida
- Triplesiidae
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Oxoplecia holstonensis
Willard 1928
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| Willard | ||||||||||
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Rhynchonellata
- Orthida
- Hesperorthidae
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Hesperorthis tricenaria
(Conrad 1843)
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Rhynchonellata
- Orthida
- Draboviidae
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Pionodema sp.
Foerste 1912
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Pionodema subaequata
(Conrad 1843)
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira recurvirostris
(Hall 1847)
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| recombined as Anazyga recurvirostra | ||||||||||
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Zygospira sp.
Hall 1862
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Zygospira modesta
(Hall 1847)
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| Say | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Ancistrorhynchidae
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Ancistrorhyncha costata
Ulrich and Cooper 1942
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| Ulrich & Cooper | ||||||||||
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Stenolaemata
- Cryptostomata
- Arthrostylidae
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Helopora sp.
Hall 1851
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Eurydictya multipora
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| Hall | ||||||||||
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Stenolaemata
- Cryptostomata
- Escharoporidae
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Escharopora sp.
Hall 1847
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Homotrypa sp.
Ulrich 1882
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Stenolaemata
- Trepostomata
- Heterotrypidae
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Dekayella sp.
Ulrich 1882
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Trilobita
- Asaphida
- Asaphidae
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Isotelus sp.
Dekay 1824
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Ostracoda
- Leperditicopida
- Leperditiidae
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Leperditia sp.
Rouault 1851
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Georgia | County: | Walker |
| Coordinates: | 34.8° North, 85.4° West (view map) | ||||
| Paleocoordinates: | 29.2° South, 66.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| *Period: | Middle Ordovician - Late/Upper Ordovician | ||
| Key time interval: | Caradoc | ||
| Age range of interval: | 458.40000 - 449.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Stratigraphy comments: no information given |
Lithology and environment
| Primary lithology: | gray argillaceous "limestone" |
| Secondary lithology: | gray "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: flaggy, gray to blue-gray, crystalline argillaceous limestone. thin beds of gray shale. | |
| Environment: | offshore indet. |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 32791 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2003-07-15 12:54:43 | Last modified: | 2004-10-20 10:13:41 |
| Access level: | the public | Released: | 2003-07-15 12:54:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 8741. | A. T. Allen and J. G. Lester. 1957. Zonation of the Middle and Upper Ordovician strata in northwestern Georgia. Georgia State Division of Conservation, the Geological Survey Bulletin 66:1-104 [S. Holland/T. Hanson/T. Hanson] |