Portobello Point, Zones 22-23: Tortonian, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea goldfussii
Wagner 1839
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Bivalvia
- Cardiida
- Veneridae
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Mercenaria cuneata
Conrad 1869
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Dosinia acetabulum
(Conrad 1832)
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| subspecies thori | ||||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius (Tritiaria) peralta
(Conrad 1868)
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Gastropoda
- Turritellidae
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Turritella plebeia plebeia
Ward 1992
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Maryland | County: | St. Marys |
| Coordinates: | 38.2° North, 76.5° West (view map) | ||||
| Paleocoordinates: | 38.3° North, 74.4° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63 - 7.246 m.y. ago |
Stratigraphy
| Geological group: | Chesapeake | Formation: | Saint Marys | Member: | Little Cove Point |
| Regional section: | Shattuck | Regional bed: | 22-23 | ||
| Regional order: | bottom to top |
Lithology and environment
| Primary lithology: | very fine argillaceous,silty sandstone |
| Includes fossils? | Y |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 71635 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2007-05-02 10:49:18 | Last modified: | 2007-05-02 13:51:36 |
| Access level: | the public | Released: | 2007-05-02 10:49:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 16985. | L. W. Ward. 1992. Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America. Virginia Museum of Natural History 2 [A. Miller/A. Hendy] |