ammonites
Railroad cut in Lockport, Williamson Fm. (0.0 m), Niagara Co., New York (Silurian of the United States)

Where: Niagara County, New York (43.2° N, 78.7° W: paleocoordinates 28.4° S, 42.7° W)

• coordinate based on nearby landmark

When: Pterospathodus amorphognathoides zone, Williamson Shale Formation, Wenlock (428.2 - 422.9 Ma)

• 0.0 m above base.

Environment/lithology: marine; shale

• shale according to strat section. no environment info given.

Primary reference: M. A. Kleffner. 1991. Conodont biostratigraphy of the upper part of the Clinton Group and the Lockport Group (Silurian) in the Niagara Gorge region, New York and Ontario. Journal of Paleontology 65(3):500-511 [J. Alroy/M. Sommers/J. Alroy] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 779: authorized by John Alroy, entered by Mike Sommers on 04.03.1999

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)