Horizon 4, Centerfield Member, Triphammer Falls, Genesee Valley, Livingston Co.,: Givetian, New York
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Euomphalina
- Platyceratidae
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Naticonema sp.
Perner 1903
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1 individual | ||||||
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Bivalvia
- Nuculanida
- Cucullellidae
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Nuculites sp.
Conrad 1841
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2 individuals | ||||||
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Bivalvia
- Myalinida
- Lunulacardiidae
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Pterochaenia sp.
Clarke 1904
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2 individuals | ||||||
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Rhynchonellata
- Rhynchonellida
- Leiorhynchidae
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Leiorhynchus sp.
Hall 1860
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1 individual | ||||||
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Rhynchonellata
- Spiriferida
- Mucrospiriferidae
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Mucrospirifer mucronatus
(Conrad 1841)
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1 individual | ||||||
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Rhynchonellata
- Spiriferida
- Ambocoeliidae
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Ambocoelia sp.
Hall 1860
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92 individuals | ||||||
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Rhipidomella sp.
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1 individual | ||||||
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Strophomenata
- Strophomenida
- Chonetidae
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Longispina sp.
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71 individuals | ||||||
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Devonochonetes scitulus
(Hall 1857)
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37 individuals | ||||||
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Trilobita
- Phacopida
- Phacopidae
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Phacops sp.
Emmrich 1839
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1 individual | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | New York | County: | Livingston |
| Coordinates: | 42.9° North, 77.8° West (view map) | ||||
| Paleocoordinates: | 36.7° South, 25.3° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Devonian | Epoch: | Middle Devonian |
| Stage: | Givetian | 10 m.y. bin: | Devonian 3 |
| Key time interval: | Givetian | ||
| Age range of interval: | 387.70000 - 382.70000 m.y. ago |
Stratigraphy
| Formation: | Ludlowville | Member: | Centerfield | ||
| Local section: | Triphammer Falls | Local bed: | 4 | ||
| Local order: | bottom to top | ||||
| Regional section: | Genesee Valley | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: this horizon is within the lower transitional shales, or York submember, of the Centerfield | |||||
Lithology and environment
| Primary lithology: | gray argillaceous claystone | ||
| Lithology description: light gray to gray claystone | |||
| Environment: | transition zone/lower shoreface | Tectonic setting: | foreland basin |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection methods: | bulk,surface (in situ),chemical,mechanical,field collection,observed (not collected) |
| Reason for describing collection: | paleoecologic analysis |
| Taxonomic list comments:Data is presented two ways in the paper: as presence/absence data for all 34 sampled horizons and standardized abundances for 23 of those horizons. Where available, abundance data is entered. Counts from bulk sampling "were adjusted uniformly for fragmented and single valve occurences by multiplying through a ratio--4 fragments or 2 valves equal to one occurrence". Standardization means "bulk sampling counts were standardized by sample weight". | |
Metadata
| Database number: | 8758 | ||
| Authorizer: | A. Miller | Enterer: | K. Layou |
| Modifier: | C. Ferguson | Research group: | marine invertebrate |
| Created: | 2000-08-28 12:42:05 | Last modified: | 2004-04-27 18:49:56 |
| Access level: | the public | Released: | 2000-11-20 13:53:40 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 684. | M. Savarese, L. M. Gray, and C. E. Brett. 1986. Faunal and Lithologic Cyclicity in the Centerfield Member (Middle Devonian: Hamilton Group) of Western New York: A Reinterpretation of Depositional History. In E. Landing, C. E. Brett (eds.), Dynamic Stratigraphy and Depositional Environments of the Hamilton Group (Middle Devonian) in New York State, Part I 457:32-56 [A. Miller/K. Layou/P. Wagner] |