Sohl and Koch OFR # 25: Early/Lower Maastrichtian, Mississippi
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
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Echinoidea indet.
(Leske 1778)
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| Echinoid sp. - originally entered as "Echinoidea sp." | ||||||||||
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Polychaeta
- Serpulimorpha
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Hamulus onyx
Morton 1834
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| Hamulus onyx Morton | ||||||||||
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Polychaeta
- Sabellida
- Serpulidae
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Serpula sp.
Linnaeus 1758
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| Serpula sp. | ||||||||||
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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| Bryozoa (encrusting) | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Trachycardium eufaulensis
(Conrad 1860)
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2 specimens | |||||||||
| Trachycardium eufaulensis (Conrad) | ||||||||||
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Bivalvia
- Trigoniida
- Megatrigoniidae
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Pterotrigonia (Scabrotrigonia) eufaulensis
(Gabb 1860)
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1 specimen | |||||||||
| Pterotrigonia (Scabrotrigonia) euf | ||||||||||
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Bivalvia
- Mytilida
- Crenellidae
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Crenella serica
Conrad 1860
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11 specimens | |||||||||
| Crenella serica Conrad | ||||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Lithophaga sp.
Röding 1798
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1 specimen | |||||||||
| Lithophaga sp. | ||||||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte vesicularis
(Lamarck 1806)
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10 specimens | |||||||||
| recombined as Pycnodonta vesicularis | ||||||||||
| Pycnodonte vesicularis Lamarck | ||||||||||
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Exogyra costata
(Say 1820)
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18 specimens | |||||||||
| original and current combination Exogyra (Exogyra) costata | ||||||||||
| Exogyra costata Say | ||||||||||
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Gryphaeostrea vomer
(Morton 1828)
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2 specimens | |||||||||
| Gryphaeostrea vomer Morton | ||||||||||
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Bivalvia
- Ostreida
- Flemingostreidae
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Cubitostrea tecticosta
(Gabb 1860)
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1 specimen | |||||||||
| Cubitostrea tecticosta (Gabb) | ||||||||||
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Bivalvia
- Pectinida
- Anomiidae
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Anomia (Anomia) argentaria
Morton 1833
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26 specimens | |||||||||
| Anomia (Anomia) argentaria Morton | ||||||||||
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Bivalvia
- Pectinida
- Limidae
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Lima (Lima) reticulata
Forbes 1845
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16 specimens | |||||||||
| recombined as Lima reticulata | ||||||||||
| Lima (Lima) reticulata Lyell & For | ||||||||||
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Bivalvia
- Pectinida
- Entoliidae
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Syncyclonema simplicius
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7 specimens | |||||||||
| Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius" | ||||||||||
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Bivalvia
- Arcida
- Parallelodontidae
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Nemodon eufaulensis
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1 specimen | |||||||||
| Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis] | ||||||||||
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Demospongiae
- Clavulina
- Clionaidae
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Cliona sp.
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| Clione sp. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Mississippi | County: | Chickasaw |
| Coordinates: | 34.0° North, 88.9° West (view map) | ||||
| Paleocoordinates: | 37.6° North, 66.4° West | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| *Period: | Late/Upper Cretaceous | *Epoch: | Late/Upper Senonian |
| *International age/stage: | Middle - Late/Upper Maastrichtian | ||
| Key time interval: | Early/Lower Maastrichtian | Foram zone: | Gansserina gansseri |
| Age range of interval: | 72.10000 - 66.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Chiwapa | Member: | lower | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: No forams have been recovered from this unit, it is assigned to the Gansserina gansseri zone by Mancini et al. (1996) by sequence stratigraphy and the biostratigraphy of surrounding units. Haustator bilira assemblage zone. | |||||
Lithology and environment
| Primary lithology: | glauconitic,gray lithified sandstone | ||
| Environment: | marine indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,original calcite |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Museum repositories: | USGS |
| Collection method comments: Sohl collection | |
Metadata
| Also known as: | Davis Lake; USGS # 32314 | ||
| Database number: | 4116 | ||
| Authorizer: | M. Kosnik | Enterer: | M. Kosnik |
| Modifier: | M. Manojlovic | Research group: | GCP,marine invertebrate |
| Created: | 1999-08-14 13:00:00 | Last modified: | 2016-07-25 19:02:12 |
| Access level: | the public | Released: | 1999-08-14 13:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 281. | N. F. Sohl and C. F. Koch. 1987. Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf. USGS Open File Report 87-194:1-172 [M. Kosnik/M. Kosnik] |
Secondary references:
| 29915 | J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa] |