LJC Genesee Valley nr Geneseo (Devonian of the United States)

Also known as East Avon Ludlowville Formation, Jaycox member Cuts for I-390 near Sutton Rd., East Avon, Livingston co. Geneseo Quad

Where: Livingston County, New York (42.9° N, 77.7° W: paleocoordinates 37.7° S, 25.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: lower varcus conodont zone, Jaycox Formation (Hamilton Group), Middle Devonian (393.3 - 382.7 Ma)

Environment/lithology: open shallow subtidal; lithified, argillaceous, muddy lime mudstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: bulk,

Primary reference: L. C. Ivany, C. E. Brett, H. L. B. Wall, P. D. Wall, and J. C. Handley. 2009. Relative taxonomic and ecological stability in Devonian marine faunas of New York State: a test of coordinated stasis. Paleobiology 35(4):499-524 [B. Deline/B. Deline/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 91278: authorized by Brad Deline, entered by Brad Deline on 14.09.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Anthozoa
 Stauriida - Amplexidae
 Stauriida - Zaphrentidae
Heliophyllum halli Edwards and Haime 1851 horn coral
Heliophyllum confluens Hall 1876 horn coral
 Favositida - Micheliniidae
Gastropoda
 Euomphalina - Platyceratidae
"Naticonema lineatum" = Platyostoma lineata
"Naticonema lineatum" = Platyostoma lineata Conrad 1842 snail
Bivalvia
 Myalinida - Ambonychiidae
"Plethomytilus oviformis" = Mytilarca (Plethomytilus) oviformis
"Plethomytilus oviformis" = Mytilarca (Plethomytilus) oviformis Conrad 1842 clam
 Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851 scallop
 Modiomorphida - Modiomorphidae
"Goniophora hamiltonensis" = Goniomorpha hamiltonensis
"Goniophora hamiltonensis" = Goniomorpha hamiltonensis Hall and Whitfield 1869 clam
 Modiomorphida - Cypricardiniidae
Cypricardinia indenta Conrad 1842 clam
Strophomenata
 Strophomenida - Anopliidae
"Retichonetes (Sinochonetes) lepidus" = Klocinetes lepidus
"Retichonetes (Sinochonetes) lepidus" = Klocinetes lepidus Hall 1857
 Strophomenida - Chonetidae
 Strophomenida - Leptostrophiidae
 Strophomenida - Douvillinidae
Rhynchonellata
  - Tropidoleptidae
 Orthida - Rhipidomellidae
 Pentamerida - Clorindidae
 Spiriferida - Spinocyrtiidae
 Spiriferida - Elythidae
Elita fimbriata Conrad 1842
 Athyridida - Parazygidae
Parazyga hirsuta Hall 1857
 Athyridida - Rhynchospirinidae
 Athyridida - Nucleospiridae
 Athyridida - Meristellidae
Stenolaemata
 Cryptostomata - Fenestellidae
 Cystoporida - Sulcoreteporidae
 Cyclostomata - Reptariidae
Trilobita
 Proetida - Proetidae
Basidechenella rowi Green 1838 trilobite
 Phacopida - Phacopidae
"cf. Phacops rana" = Eldredgeops rana
"cf. Phacops rana" = Eldredgeops rana Green 1832 trilobite
 Phacopida - Acastidae
cf. Greenops boothi trilobite
or G. graba
Blastoidea
 Spiraculata - Nucleocrinidae
Placoblastus sp. Fay 1961 blastoid