Hills Gulch Bed, Erie and Genesee Counties, western NY (Devonian of the United States)

Where: Erie County, New York (42.9° N, 78.6° W: paleocoordinates 36.5° S, 26.0° W)

• coordinate based on political unit

• local area-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; limestone

• limestone

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. unpublished M.S. thesis, State University of New York College at Fredonia 1-121 [A. Miller/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8978: authorized by Arnold Miller, entered by Karen Layou on 13.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• This is a composite list for the Hills Gulch Bed from the four localities listed above.
 Phacopida - Phacopidae
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite
 Proetida - Proetidae
Proetidae indet. Salter 1864 trilobite
 Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
burrow prods also present
 Productida -
"Chonetacea indet." = Chonetoidea
"Chonetacea indet." = Chonetoidea Bronn 1862
 Productida - Chonetidae
 Strophomenida - Douvillinidae
 Strophomenida - Leptostrophiidae
 Strophomenida - Strophodontidae
 Athyridida - Rhynchospirinidae
 Athyridida - Parazygidae
Parazyga hirsuta Hall 1857
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Athyridida - Athyrididae
 Spiriferinida - Cyrtinidae
 Spiriferida - Spinocyrtiidae
 Spiriferida - Elythidae
Elita fimbriata Conrad 1842
 Pentamerida - Clorindidae
 Orthida - Rhipidomellidae
 Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851 scallop
 Euomphalina - Platyceratidae
Platyceras sp., "Naticonema lineata" = Platyostoma lineata
Platyceras sp. Conrad 1840 snail
"Naticonema lineata" = Platyostoma lineata Conrad 1842 snail
Bryozoa indet. Ehrenberg 1831
fenestrates and fistuliporid-massive
 Fenestrata -
 Cryptostomata - Rhinidictyidae
Stictopora sp. Hall 1847
 Cystoporata -
Crinoidea indet. Miller 1821 Sea lily
crinoid stems and large holdfasts
 Cladida -
Ancyrocrinus bulbosus Hall 1862 Sea lily
 Auloporida - Auloporidae
Auloporidae indet. Milne-Edwards and Haime 1850 tabulate coral
 Favositida - Favositidae
Favosites hamiltoniae tabulate coral
Favosites argus Hall 1876 tabulate coral
 Favositida - Pachyporidae
Thamnoptychia sp. Hall 1876 tabulate coral
 Stauriida - Zaphrentidae
Heliophyllum halli Edwards and Haime 1851 horn coral
Heliophyllum confluens Hall 1876 horn coral
 Stauriida - Eridophyllidae