ammonites
banner
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)