Horizon 2, Levanna Member, Triphammer Falls, Genesee Valley, Livingston Co., NY (Devonian of the United States)

Where: Livingston County, New York (42.9° N, 77.8° W: paleocoordinates 36.7° S, 25.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Levanna Member (Ludlowville Formation), Givetian (387.7 - 382.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; gray, argillaceous shale

• dark gray fissile clayshales

Collection methods: bulk, surface (in situ), chemical, mechanical,

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 8756: authorized by Arnold Miller, entered by Karen Layou on 28.08.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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".
Show authors, comments, and common names
unclassified
  -
Paleozygopleura sp.
Trilobita
 Phacopida - Acastidae
Greenops sp.
Greenops sp. Delo 1935 trilobite
Bivalvia
 Nuculanida - Cucullellidae
Nuculites sp.
Nuculites sp. Conrad 1841 clam
 Modiomorphida - Modiomorphidae
Modiomorpha sp.
Modiomorpha sp. Hall and Whitfield 1869 clam
 Myalinida - Lunulacardiidae
Pterochaenia sp.
Pterochaenia sp. Clarke 1904 clam
 Ostreida - Pterineidae
Actinopteria sp.
Actinopteria sp. Hall 1884 oyster
Rhynchonellata
 Spiriferida - Mucrospiriferidae
Mucrospirifer mucronatus
 Spiriferida - Ambocoeliidae
Echinocoelia sp., Ambocoelia sp.
Ambocoelia sp. Hall 1860
 Rhynchonellida - Leiorhynchidae
Leiorhynchus sp.
Leiorhynchus sp. Hall 1860
 Athyridida - Nucleospiridae
Nucleospira sp.
Nucleospira sp. Hall 1859
 Orthida - Rhipidomellidae
Rhipidomella sp.
Strophomenata
 Strophomenida - Chonetidae
Longispina sp., Devonochonetes scitulus