Moccasin formation (overview): Middle Ordovician, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Echinodermata indet.
Klein 1754
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| echinoderm columnals | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Camarotoechia ? plena
(Hall 1847)
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| recombined as Rostricellula plena | ||||||||||
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira sp.
Hall 1862
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella sp.
Hall and Clarke 1892
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena ? incurvata
(Shephard 1838)
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina sp.
Hall and Clarke 1892
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella sp.
Jones 1928
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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? Rhinidictya sp.
Ulrich 1882
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Ostracoda
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Ostracoda indet.
Latreille 1802
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Virginia | County: | Washington |
| Coordinates: | 36.8° North, 82.3° West (view map) | ||||
| Paleocoordinates: | 30.2° South, 67.6° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| 10 m.y. bin: | Ordovician 2-3 | ||
| *Period: | Middle Ordovician | ||
| Key time interval: | Middle Ordovician | ||
| Age range of interval: | 470.00000 - 458.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Moccasin |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | shelly/skeletal,gray,red lithified argillaceous "limestone" |
| Lithology description: maroon and mottled maroon to light gray thin bedded argillaceous limestone; sparsely fossiliferous. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 6992 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers |
| Modifier: | C. Visaggi | Research group: | marine invertebrate |
| Created: | 2000-04-18 14:26:35 | Last modified: | 2004-03-11 16:25:11 |
| Access level: | the public | Released: | 2000-04-18 14:26:35 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 437. | C. S., J.r. Bartlett and H. W. Webb. 1971. Geology of the Bristol and Wallace quadrangles, Virginia. Virginia Division of Mineral Resources Report of Investigations 25:1-93 [J. Alroy/M. Sommers/P. Wagner] |