Catlett's Branch: Norian, Virginia
collected by P. Olsen & N. McDonald
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Semionotiformes
- Semionotidae
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Semionotus sp.
Agassiz 1832
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unclassified
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Estheriidae indet.
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Palaeonisciformes
- Redfieldiidae
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Redfieldius gracilis
(Redfield 1837)
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14 specimens | |||||||||
| AMNH 4803, 4828, 4833, 4834, 4933, 4934, 5721, 6751, 6752, 6756, 6757; USNM 215153, 215154, 21658 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Virginia | County: | Prince William |
| Coordinates: | 38.8° North, 77.7° West (view map) | ||||
| Paleocoordinates: | 13.2° North, 22.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Late Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Norian | ||
| Age range of interval: | 227 - 208.5 m.y. ago |
Lithology and environment
| Primary lithology: | planar lamination,black,gray silty "shale" |
| Includes fossils? | Y |
| Lithology description: "a fissile, microlaminated, medium gray to black calcareous silty shale with interbeds of light gray siltstone" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body,mold/impression,adpression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),mechanical,field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | AMNH,UNSM |
| Collectors: | P. Olsen & N. McDonald |
| Collection method comments: Airbrasive technique was used. | |
Metadata
| Also known as: | Haymarket | ||
| Database number: | 107271 | ||
| Authorizer: | M. Uhen, M. Carrano | Enterer: | M. Shalap, M. Carrano |
| Modifier: | M. Carrano | ||
| Created: | 2011-04-03 10:29:30 | Last modified: | 2022-01-13 12:58:06 |
| Access level: | the public | Released: | 2011-04-03 10:29:30 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 79067. | B. Schaeffer and N. G. McDonald. 1978. Redfieldiid fishes from the Triassic-Liassic Newark Supergroup of eastern North America. Bulletin of the American Museum of Natural History 159(4):129-174 [M. Carrano/M. Carrano] |