ammonites
PB79 (Ordovician of the United States)

Where: New York (44.6° N, 73.4° W: paleocoordinates 28.8° S, 56.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Crown Point Formation (Chazy Group), Whiterockian (471.8 - 457.5 Ma)

Environment/lithology: lithified, massive, silty limestone and lithified dolomite

• "Same [as silty dolomite laminated limestone with several thin calcarenite stringers], heavy bedded."

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Reposited in the NYSM

Collection methods: chemical,

Primary reference: F.C. Shaw. 1968. Early Middle Ordovician (Chazy) trilobites of New York. New York State Museum and Science Service Memoir 17:1-163 [P. Wagner/P. Wagner] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 103001: authorized by Melanie Hopkins, entered by Melanie Hopkins on 21.01.2011