ammonites
LC7G Hamilton area (Devonian of the United States)

Also known as Colgate Quarry Ludlowville Formation, Centerfield member, Halls Landing Beds old bldg quarry behind Colgate Univ., Hamilton, Madison Co., Hamilton Quad

Where: Madison County, New York (42.8° N, 75.5° W: paleocoordinates 38.1° S, 23.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: lower varcus conodont zone, Centerfield Member (Ludlowville Formation), Middle Devonian (391.9 - 383.7 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] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 91246: authorized by Brad Deline, entered by Brad Deline on 13.09.2009