OR-2 (Cross Fm., South Carolina): Late Eocene, South Carolina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Cidaroida
- Cidaridae
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Cidaris pratti
Clark and Twitchell 1915
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea sp.
Lamarck 1799
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Gastropoda
- Lepetellida
- Fissurellidae
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Puncturella sp.
Lowe 1827
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys spp.
Röding 1798
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Chlamys cf. cocoana
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| Chlamys cf. C. cocoana | ||||||||||
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Chlamys deshayesii
(Lea 1833)
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris sp.
Da Costa 1778
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Bivalvia
- Mytilida
- Mytilidae
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Modiolus sp.
(Lamarck 1801)
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Bivalvia
- Cardiida
- Cardiidae
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Cardiidae indet.
Lamarck 1809
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Bivalvia
- Cardiida
- Veneridae
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Callista neusensis
(Harris 1919)
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Bivalvia
- Carditida
- Crassatellidae
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Crassatella alta
Conrad 1855
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Bivalvia
- Nuculida
- Nuculidae
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Nucula sp.
Lamarck 1799
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Rhynchonellata
- Terebratulida
- Cancellothyrididae
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Terebratulina spp.
d'Orbigny 1847
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Carolina | County: | Orangeburg |
| Coordinates: | 33.4° North, 80.8° West (view map) | ||||
| Paleocoordinates: | 33.4° North, 72.8° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| *Period: | Tertiary | *Local age/stage: | Jacksonian |
| Key time interval: | Late Eocene | Zone: | Crassatella alta/Chlamys cawcawensis |
| Age range of interval: | 37.71 - 33.9 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Cross | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: According to Powell and Baum, this collection also falls under the Periarchus lyelli faunal zone. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal lithified wackestone |
| Secondary lithology: | grainstone |
| Includes fossils? | Y |
| Lithology description: the upper eocene cross formation is composed of molluscan biomicrudites which grade updip into molluscan biosparrudites. | |
| Environment: | marine indet. |
| Geology comments: "[The Cross Formation's] fauna is somewhat depauperate and in association suggests a termperate climate." | |
Taphonomy
Collection methods and comments
| Collection excludes: | all microfossils,difficult macrofossils |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 5364 | ||
| Authorizer: | A. Miller | Enterer: | K. Layou |
| Modifier: | A. Miller | Research group: | marine invertebrate |
| Created: | 1999-09-27 13:15:44 | Last modified: | 2007-01-28 14:37:04 |
| Access level: | the public | Released: | 1999-09-27 13:15:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 318. | R. J. Powell and G. R. Baum. 1982. Eocene biostratigraphy of South Carolina and its relationship to Gulf Coastal Plain zonations and global changes of coastal onlap. Geological Society of America Bulletin 93:1099-1108 [A. Miller/K. Layou] |