Powys Curve: Devonian, Pennsylvania
collected 1995, 1840
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhizodontiformes
- Rhizodontidae
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Sauripterus taylori
Hall 1843
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Pennsylvania | County: | Lycoming |
| Coordinates: | 41.4° North, 77.1° West (view map) | ||||
| Paleocoordinates: | 39.6° South, 24.9° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Devonian |
| 10 m.y. bin: | Devonian 1-5 |
| Key time interval: | Devonian |
| Age range of interval: | 419.20000 - 358.90000 m.y. ago |
Stratigraphy
| Formation: | Catskill | Member: | Sherman Creek | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: The lithology of the block from which the fossil was extracted is identical to in-situ material from the road cut less than 100 meters away. | |||||
Lithology and environment
| Primary lithology: | siltstone |
| Secondary lithology: | fine,medium sandstone |
| Lithology description: The Sherman Creek Member is characterized by laterally persistent, several-meter-thick, fining-upward cycles of siltstones and fine to medium sandstones. | |
| Environment: | delta plain |
| Geology comments: These lithologies indicate that the Sherman Creek Member formed in a delta plain setting characterized by low gradient, high sinuosity, shallow channels near the coastline (Sevon, 1985). Root traces are abundant and suggest stable, vegetated interfluves (Harvey, 1998). | |
Taphonomy
| Modes of preservation: | adpression |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Spatial orientation: | preferred |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | rare |
| Spatial resolution: | allochthonous |
Collection methods and comments
| Collection excludes: | species names |
| Collection methods: | surface (float),survey of museum collection |
| Collection size: | 3 individuals |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | AMNH,ANSP | Collection dates: | 1995, 1840 |
Metadata
| Database number: | 136079 | ||
| Authorizer: | S. Peters | Enterer: | S. McMullen | Research group: | vertebrate |
| Created: | 2012-11-16 14:25:58 | Last modified: | 2012-11-15 21:25:58 |
| Access level: | the public | Released: | 2012-11-16 14:25:58 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 43519. | M. C. Davis, N. I. Shubin, and E. B. Daeschler. 2004. A new specimen of Sauripterus taylori (Sarcopterygii; Osteichthyes) from the Famennian Catskill Formation of North America. Journal of Vertebrate Paleontology 24(1):26-40 [S. Peters/S. McMullen] |