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East Chatham Quad, unnamed fm., NY (Cambrian of the United States)

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 zone, Lenian (516.0 - 513.0 Ma)

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

Creative Commons license: CC BY (attribution)