Gateway to the Paleobiology Database
Riker Hill Quarry (unit 18) (Jurassic of the United States)

Also known as Roseland Quarry, Riker Hill Fossil Site, Walter Kidde Dinosaur Park

Where: Essex County, New Jersey (40.8° N, 74.3° W: paleocoordinates 21.4° N, 20.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: B Member (Towaco Formation), Hettangian (201.6 - 196.5 Ma)

• unit 18 = bed n = Unit f

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; fine-grained, red mudstone and sandstone

• "relatively fine-grained red, gray, and black units, mostly mudstone and fine sandstone"

Size classes: macrofossils, mesofossils

Preservation: cast, mold/impression, trace

Collected in 1968

Collection methods: quarrying, surface (in situ),

Primary reference: P. E. Olsen. 1980. The latest Triassic and early Jurassic formations of the Newark Basin (eastern North America): stratigraphy, structure, & correlation. The Bulletin of the New Jersey Academy of Science 25(2):25-51 [M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 55527: authorized by Matthew Carrano, entered by Matthew Carrano on 30.10.2005

Creative Commons license: CC BY (attribution)