Barren shale, Jaycox Member, Seneca Lake Valley, Ontario Co., NY (Devonian of the United States)

Where: Ontario County, New York (42.8° N, 77.0° W: paleocoordinates 36.9° S, 24.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; gray, calcareous shale

• calcareous shale

Preservation: trace

Collection methods: surface (in situ),

Primary reference: S. M. Mayer. 1989. Stratigraphy and Paleontology of the Jaycox Shale Member, Hamilton Group of the Finger Lakes Region of New York State. 1-121 [A. Miller/K. Layou/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9027: authorized by Arnold Miller, entered by Karen Layou on 15.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• This list is a composite faunal list for the three localities listed above.
Trilobita
 Phacopida - Acastidae
Greenops boothi trilobite
Cephalopoda
 Orthocerida - Orthoceratidae
Michelinoceras ? sp. Foerste 1932
nautiloid
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
small bivalves
 Nuculanida - Malletiidae
Palaeoneilo sp. Hall and Whitfield 1869 clam
[entered as Paleoneilo sp.]
 Modiomorphida - Modiomorphidae
Modiomorpha concentrica Conrad 1838 clam
Rhynchonellata
 Athyridida - Athyrididae
 Spiriferida - Mucrospiriferidae
  - Tropidoleptidae
Strophomenata
 Strophomenida - Leptostrophiidae
 Strophomenida - Douvillinidae
 Strophomenida -
"Chonetacea indet." = Chonetoidea
"Chonetacea indet." = Chonetoidea Bronn 1862
Lingulata
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
Stenolaemata
 Cyclostomata - Reptariidae
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
crinoid stems
 Ichnofossils -
Zoophycos sp. Massalongo 1855