Horizon 9, Centerfield Member, Triphammer Falls, Genesee Valley, Livingston Co.,: Givetian, New York

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Auloporida - Aulocystidae
Aulocystis sp. Schlüter 1885
Strophomenata - Strophomenida - Strophodontidae
Pholidostrophia sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Douvillinidae
Strophomenata - Strophomenida - Chonetidae
Rhynchonellata - Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
Rhynchonellata - Atrypida - Atrypidae
Pseudatrypa sp. (Copper 1973)
[entered as Pseudoatrypa sp.]
Rhynchonellata - Spiriferida - Ambocoeliidae
Ambocoelia sp. Hall 1860
Rhynchonellata - Spiriferida - Elythidae
Stenolaemata - Cystoporida - Sulcoreteporidae
Stenolaemata - Cystoporata - Fistuliporidae
Stenolaemata - Cryptostomata - Fenestellidae
Bivalvia - Ostreida - Pterineidae
Gastropoda - Euomphalina - Platyceratidae
Trilobita - Phacopida - Phacopidae
see common names

Geography
Country:United States State/province:New York County:Livingston
Coordinates: 42.9° North, 77.8° West (view map)
Paleocoordinates:31.0° South, 45.5° West (Wright 2013)
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: 387.95 - 382.31 m.y. ago
Stratigraphy
Formation:Ludlowville Member:Centerfield
Local section:Triphammer Falls Local bed:9 (unnamed nodular limestone)
Local order:bottom to top
Regional section:Genesee Valley
Stratigraphic resolution:bed
Stratigraphy comments: this horizon is within the lower transitional shales of the York submember of the Centerfield
Lithology and environment
Primary lithology:gray lime mudstone
Secondary lithology: claystone
Includes fossils?Y
Includes fossils?Y
Lithology description: nodular limestone within 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 in 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 valve equal to one occurence." Standardization means "bulk sampling counts were standardized by sample weight".
Metadata
Database number:8766
Authorizer:A. Miller Enterer:K. Layou
Modifier:C. Ferguson Research group:marine invertebrate
Created:2000-08-29 07:58:25 Last modified:2025-02-22 15:12:02
Access level:the public Released:2000-11-20 13:53:40
Creative Commons license:CC0
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]