Friendship Home tracksite: Rhaetian, Pennsylvania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Grallatoridae
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Grallator sp.
Hitchcock 1858
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Reptilia
- Chirotheriidae
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Brachychirotherium sp.
Beurlen 1950
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Reptilia
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Rhynchosauroides sp.
Maidwell 1911
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Geography
| Country: | United States | State/province: | Pennsylvania | County: | Berks |
| Coordinates: | 40.3° North, 75.8° West (view map) | ||||
| Paleocoordinates: | 19.1° North, 21.4° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Rhaetian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Rhaetian | ||
| Age range of interval: | 208.50000 - 201.40000 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | brown,gray,green claystone |
| Secondary lithology: | brown,gray,red claystone |
| Lithology description: layers include green, gray and light brownish gray as well as red-brown and grayish-brown ?claystones | |
| Environment: | lacustrine indet. |
Taphonomy
| Modes of preservation: | cast |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | good |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection excludes: | ichnofossils |
| Collection methods: | surface (in situ),field collection,observed (not collected) |
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:two new taxa (A and B) are proposed but neither named nor assigned to higher taxonomic groups. | |
Metadata
| Database number: | 132244 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2012-08-10 07:34:17 | Last modified: | 2014-10-20 16:41:06 |
| Access level: | the public | Released: | 2012-08-10 07:34:17 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 42584. | M. J. Szajna and A. M. Silvestri. 1996. A new occurrence of the ichnogenus Brachychirotherium: implications for the Triassic–Jurassic mass extinction event. In M. Morales (ed.), The Continental Jurassic. Museum of Northern Arizona Bulletin 60:275-283 [M. Carrano/M. Carrano] |