Sponge-Megastrophia bed, Hills Gulch, Jaycox Member, Genesee Co., NY (Devonian of the United States)

Where: Genesee County, New York (43.0° N, 78.1° W: paleocoordinates 36.5° S, 25.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

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

• slightly calcareous mudstone

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 8985: authorized by Arnold Miller, entered by Karen Layou on 14.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Acastidae
Greenops boothi trilobite
 Phacopida - Phacopidae
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite
Rhynchonellata
 Spiriferida - Mucrospiriferidae
Strophomenata
 Strophomenida - Leptostrophiidae
 Strophomenida - Douvillinidae
 Strophomenida -
"Chonetacea indet." = Chonetoidea
"Chonetacea indet." = Chonetoidea Bronn 1862
 Strophomenida - Strophodontidae
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
fenestrates
Stenolaemata
 Cystoporata - Fistuliporidae
Fistuliporidae indet. Ulrich 1882
massive form
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
crinoid stems and large holdfasts
Anthozoa
 Stauriida - Stereolasmatidae
Stereolasma rectum Hall 1843 horn coral
Demospongiae
 Lithistida -
Lithistida indet. demosponge
lithistid demosponges