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Riker Hill Quarry (unit 5) (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: A Member (Towaco Formation), Hettangian (201.6 - 196.5 Ma)

• unit 5 = bed e = part of Unit b

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; paleosol/pedogenic, coarse-grained, red, conglomeratic siltstone and paleosol/pedogenic, red, calcareous sandstone

• "relatively fine-grained red, gray, and black units, mostly mudstone and fine sandstone"; "...red sandstone or coarse siltstone...Lowest cycle contains buff intraformational breccia with corprolites, reptile bone fragments, and fish scales. Lower cycle contains numerous calcareous lenticular concretions..."

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 62838: authorized by Matthew Carrano, entered by Matthew Carrano on 28.07.2006

Creative Commons license: CC BY (attribution)