Emerson School Section - Fig. 3 Fort Cassin Fm.: Arenig, Vermont
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Asaphida
- Asaphidae
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Isoteloides canalis
(Whitfield 1886)
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Trilobita
- Proetida
- Bathyuridae
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Acidiphorus whittingtoni
Brett and Westrop 1996
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Vermont |
| Coordinates: | 44.5° North, 73.3° West (view map) | ||
| Paleocoordinates: | 30.2° South, 60.5° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician |
| 10 m.y. bin: | Ordovician 2 |
| Key time interval: | Arenig |
| Age range of interval: | 477.70000 - 468.40000 m.y. ago |
Stratigraphy
| Formation: | Fort Cassin |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | shelly/skeletal lithified lime mudstone |
| Includes fossils? | Y |
| Environment: | deep subtidal shelf |
| Geology comments: Deposited in subtidal shelf setting between normal and storm wave bases. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | AMNH,CM,MCZ,NYSM |
Metadata
| Also known as: | ES 0.82 | ||
| Database number: | 55240 | ||
| Authorizer: | S. Peters | Enterer: | S. Peters | Research group: | marine invertebrate |
| Created: | 2005-09-30 15:00:15 | Last modified: | 2005-09-30 18:00:15 |
| Access level: | the public | Released: | 2005-09-30 15:00:14 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 14697. | K. D. Brett and S. R. Westrop. 1996. Trilobites of the Lower Ordovician (Ibexian) For Cassin Formation, Champlain Valley Region, New York State and Vermont. Journal of Paleontology 70(3):408-427 [S. Peters/S. Peters/O. Alfaro] |