Paulison Avenue, Clifton/Passaic boundary (Triassic to of the United States)

Also known as WPA quarry

Where: Passaic County, New Jersey (40.9° N, 74.1° W: paleocoordinates 16.5° N, 19.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Passaic Formation (Chatham Group), Norian to Norian (228.0 - 201.3 Ma)

• "upper" part of the formation; late Norian-Rhaetian (Sues et al. 2000); Newark Supergroup

•Originally enterd group name >>Newark<< is replaced by >>Chatham<< since all Upper Triassic formations of the Newark Supergroup are assigned to the Chatham Group, according to Weems & Olsen (1997, GSA Bulletin 109(2)) (TL).

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone and shale

• "Heavy, block-like sandstones, with intercalated lenses of shale. The beds dip gently to the west, and a number of faults are apparent, even within the small area of the quarry"

Size class: macrofossils

Collected by B. Brown, G. G. Simpson; reposited in the AMNH

Collection methods: salvage,

Primary reference: E. H. Colbert. 1946. Hypsognathus, a Triassic Reptile from New Jersey. Bulletin of the American Museum of Natural History 86:229-274 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89137: authorized by Richard Butler, entered by Richard Butler on 06.05.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

 Procolophonia - Procolophonidae
Hypsognathus fenneri Gilmore 1928 parareptile
AMNH1676, partial skull and postcranial skeleton; AMNH 1677, partial skull; AMNH 1678, premaxilla/maxilla; bone fragments