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Nishisakawick Creek (tracks) (Triassic of the United States)

Where: Hunterdon County, New Jersey (40.5° N, 75.0° W: paleocoordinates 15.1° N, 20.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: F Member (Passaic Formation), Norian (221.5 - 205.6 Ma)

• 1.5 m below member F.

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; red siltstone

• "flaggy red and purple siltstones"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by P. E. Olsen in 1984

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: P. E. Olsen and D. Baird. 1986. The ichnogenus Atreipus and its significance for Triassic biostratigraphy. In: K. Padian (ed.), The Beginning of the Age of Dinosaurs: Faunal Changes Across the Triassic-Jurassic Boundary. Cambridge University Press, Cambridge 61-87 [M. Carrano/K. Maguire/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55410: authorized by Matthew Carrano, entered by Kaitlin Maguire on 19.10.2005

Creative Commons license: CC BY (attribution)