Where: Monmouth County, New Jersey (40.1° N, 74.5° W: paleocoordinates 40.4° N, 50.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hornerstown Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• From main fossiliferous layer at base of Hornerstown Formation. Ammonites interpreted as either reworked or remainie.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, glauconitic sandstone

Size class: macrofossils

Preservation: mold/impression, replaced with phosphate

Collection methods: Repository: Monmouth Amateur Paleontologists Society, Long Branch, New Jersey

Primary reference: W. J. Kennedy and W.A. Cobban. 1996. Maastrichtian ammonites from the Hornerstown Formation in New Jersey. Journal of Paleontology 70(5):798-805 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 178551: authorized by Matthew Clapham, entered by Matthew Clapham on 07.05.2016

Creative Commons license: CC BY (attribution)