BR-1.35: Tremadocian, New York
collected by E. Landing, L. Knox, S. Westrop
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Asaphida
- Asaphidae
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Bellefontia gyracantha
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Trilobita
- Ptychopariida
- Kingstoniidae
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Clelandia parabola
(Cleland 1900)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | New York | County: | Montgomery |
| Coordinates: | 42.9° North, 74.4° West (view map) | ||||
| Paleocoordinates: | 31.6° South, 68.6° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| Stage: | Tremadocian | 10 m.y. bin: | Ordovician 1 |
| Key time interval: | Tremadocian | Conodont zone: | Rossodus manitouensis |
| Age range of interval: | 485.40000 - 477.70000 m.y. ago |
Stratigraphy
| Geological group: | Beekmantown | Formation: | Tribes Hill | Member: | Van Wie |
| Local section: | Borden Road | Local bed: | 1.35 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Stratigraphy based on Landing et al (1996, J of P 70:656-680). | |||||
Lithology and environment
| Primary lithology: | intraclastic lithified packstone |
| Secondary lithology: | gray lithified "shale" |
| Includes fossils? | Y |
| Lithology description: "Shales with interbeds of bioclastic and intraclastic packstones and rudstones" (Westrop et al 1993). "[Sample from] recessive, thin interval of dark grey shale and lenticular, intraclast-trilobite-echinoderm limestone...locally dolomitized...weathers buff to tan." (Landing et al 1996, J of P 70:656-680). | |
| Environment: | deep subtidal shelf |
| Geology comments: Based on discussion in Landing et al (1996, J of P 70:656-680). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | NYSM |
| Collectors: | E. Landing, L. Knox, S. Westrop |
| Taxonomic list comments:Gastropods and conodonts may also be present (the latter reported from other beds in section) | |
Metadata
| Database number: | 174042 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
| Modifier: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2015-10-24 10:46:28 | Last modified: | 2015-10-24 11:09:15 |
| Access level: | the public | Released: | 2015-10-24 10:46:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 56736. | S. R. Westrop, L. A. Knox, and E. Landing. 1993. Lower Ordovician (Ibexian) trilobites from the Tribes Hill Formation, central Mohawk Valley, New York State. Canadian Journal of Earth Sciences 30:1618-1633 [M. Hopkins/M. Hopkins/M. Uhen] |