Onondaga Formation, Saugherties (Devonian of the United States)

Where: New York (42.0° N, 74.0° W: paleocoordinates 40.2° S, 21.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nedrow Member (Onondaga Formation), Eifelian (393.3 - 387.7 Ma)

• Member description includes Nedrow and Moorehouse. Atrypa-Megakozlowskiella community

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, gray, argillaceous limestone

• Seems like tempestite deposition, but get verification. Too shallow?; "Moderately argillaceous to highly argillaceous"; "Mid-neritic"; just below wave base, with mild agitation
• Moderately argillaceous, medium gray, medium-grained limestone (mudstone and wackestone) with dark-weathering chert seams

Size classes: macrofossils, mesofossils

Reposited in the AMNH

• Localities 3130 and 3131B really 075 longitude, and 3133-3134 at 074; loc. 3131 at 43N, 075W

Primary reference: H.R. Feldman. 1980. Level-bottom brachiopod communities in the Middle Devonian of New York. Lethaia 13:27-46 [P. Novack-Gottshall/P. Hearn]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 77077: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 19.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• Atrypa community (BUT NOT the Atrypa "reticularis" (sensu Boucot, 1999: 550) since not monospecies dominant)
Actinophyllum
  -
Actinophyllum sp. Phillips 1848
"Common"
Anthozoa
 Stauriida - Amplexidae
Heterophrentis sp. Billings 1875 horn coral
"Common"
 Stauriida - Laccophyllidae
cf. Syringaxon sp. Lindström 1882 horn coral
"Common"
 Stauriida - Streptelasmatidae
Breviphrentis sp. Stumm 1949 horn coral
"Common"
 Stauriida - Stereolasmatidae
cf. Amplexiphyllum sp. Stumm 1949 horn coral
"Common"
 Stauriida - Zaphrentidae
Heliophyllum sp. Hall 1846 horn coral
"Common"
 Auloporida - Auloporidae
Aulopora sp. Goldfuss 1829 tabulate coral
"Common"
 Favositida - Favositidae
Favosites sp. Lamarck 1816 tabulate coral
"Common"
Strophomenata
 Orthotetida -
Orthotetida indet. Waagen 1884
 Strophomenida - Strophodontidae
Megastrophia sp. Caster 1939
 Strophomenida - Rafinesquinidae
 Strophomenida - Strophonellidae
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Cupularostrum sp. Sartenaer 1961
 Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
 Orthida - Dalmanellidae
Levenea sp. Schuchert and Cooper 1931
 Orthida - Schizophoriidae
 Atrypida - Atrypidae
Atrypa reticularis Linnaeus 1758
 Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
 Pentamerida - Clorindidae
Pentamerella arata Conrad 1841
 Spiriferinida - Cyrtinidae
 Spiriferida - Elythidae
Elita fimbriata Conrad 1842
Originally "Elytha fimbriata" Assuming spelling error.
 Spiriferida - Cyrtinopsidae
 Athyridida - Anoplothecidae
 Athyridida - Athyrididae
 Athyridida - Nucleospiridae
 Athyridida - Meristellidae
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
"Rare"