cs-4,North Chatham (Cambrian of the United States)

Also known as Was: East Chatham Quad, unnamed fm., NY

Where: Columbia County, New York (42.4° N, 73.5° W: paleocoordinates 34.1° S, 88.0° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Bonnia - Olenellus trilobite zone, Stissing Formation, Lenian (516.0 - 510.2 Ma)

• PJW: This should be the Stissing.

Environment/lithology: offshore shelf; green limestone and shale

• "sh and ls; ls beds up to 15 cm thick, fine grained; green shale. ? Shelf BA4?"

Size class: macrofossils

Primary reference: J. M. Bird and F. Rasetti. 1968. Lower, Middle and Upper Cambrian Faunas in the Taconic Sequence of Eastern New York: Stratigraphic and Biostratigraphic Significance. Geological Society of America Special Paper 113:1-66 [P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 189: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "J.H. Bird and F.Rasetti 1968. Lower, middle and upper Cambrian fauna in the Taconic sequence of eastern New York: stratigraphic and biostratigraphic significance. GSA spec. Paper 113 66p."
Artiopoda
 Agnostida -
Agnostida indet. Salter 1864
 Agnostida - Weymouthiidae
 Agnostida - Calodiscidae
Trilobita
 Redlichiida - Olenellidae
Olenellus sp. Hall 1861 trilobite
"Paedumias sp." = Olenellus (Paedeumias) Walcott 1910 trilobite
3 species - originally entered as "Paedeumias sp."
 Corynexochida - Dorypygidae
Bonnia sp. Walcott 1916 trilobite