7098-CO. near top of Skene Mountain (Cambrian to of the United States)

Where: Washington County, New York (42.5° N, 73.4° W: paleocoordinates 32.8° S, 72.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Missisquoia trilobite zone, Skene Member (Whitehall Formation), Furongian to Furongian (497.0 - 485.4 Ma)

• Missisquoia subzone: 490.0 - 488.3 Ma. PJW: Missisquoia zone rocks here should be Little Falls formation.

• bed-level stratigraphic resolution

Environment/lithology: lithified, ooidal, gray grainstone

• "The lower part of the Whitehall contains domal stromatolites, thrombolites, and lime grainstones interpreted to have formed in supratidal, intertidal, and shallow-subtidal marine environments. The vagile epibenthic fauna probably occupied warm-water, nearshore, shallow-subtidal habitats characterized by sustained moderate to high turbulence. Some limestone beds contain length-slow chalcedony which is thought to be an indicator of general hypersalinity or widely fluctuating salinity conditions in the environment of deposition. "

•"... composed of light- to medium-gray (N 6-7) ooid-lithoclast grainstone "

Size class: macrofossils

Collected by M. E. Taylor & J. E. Taylor in 09/23/1971; reposited in the USNM

Primary reference: M. E. Taylor and R. B. Halley. 1974. Systematics, environment, and biogeography of some Late Cambrian and Early Ordovician trilobites from eastern New York State. United States Geological Survey Professional Paper 834:1-38 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85121: authorized by Pete Wagner, entered by Pete Wagner on 29.11.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Streptoneura -
Archaeogastropoda indet. Thiele 1925 snail
 Eogastropoda - Sinuopeidae
"Schizopea "sp. A"" = Schizopea, "Dirhachopea sp." = Schizopea
"Schizopea "sp. A"" = Schizopea Butts 1926 snail
"Dirhachopea sp." = Schizopea Butts 1926 snail
[entered as Dirachopea sp.]
Rostroconchia
 Ribeirioida - Ischyriniidae
"Ribeiria cf. nuculitiformis" = Anisotechnophorus nuculitiformis
"Ribeiria cf. nuculitiformis" = Anisotechnophorus nuculitiformis Cleland 1900
Trilobita
 Corynexochida - Missisquoiidae
"Missisquoia typicalis" = Parakoldinioidia stitti
"Missisquoia typicalis" = Parakoldinioidia stitti Fortey 1983 trilobite