Barren shale, Jaycox Run, Jaycox Member, Livingston Co., NY (Devonian of the United States)

Where: Livingston County, New York (42.8° N, 77.8° W: paleocoordinates 36.7° S, 25.4° W)

• coordinate based on nearby landmark

• small collection-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 8995: authorized by Arnold Miller, entered by Karen Layou on 14.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Demospongiae
 Lithistida -
Lithistida indet. demosponge
lithistid demosponges
Cephalopoda
 Orthocerida - Orthoceratidae
Michelinoceras ? sp. Foerste 1932
nautiloid
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
small bivalves
Strophomenata
 Strophomenida -
"Chonetacea indet." = Chonetoidea
"Chonetacea indet." = Chonetoidea Bronn 1862
 Strophomenida - Leptostrophiidae
 Strophomenida - Douvillinidae
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
fenestrates
Trilobita
 Phacopida - Acastidae
Greenops boothi trilobite
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
crinoid stems
 Cladida - Botryocrinidae
Ancyrocrinus bulbosus Hall 1862 Sea lily
 Ichnofossils -
Zoophycos sp. Massalongo 1855