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Maastrichtian ammonites from the Hornerstown Formation in New Jersey

Journal of Paleontology

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Abstract

The base of the Paleocene Hornerstown Formation at the Inversand pit and certain other localities in New Jersey yields a diverse phosphatised fauna of Maastrichtian age, including the ammonites Pachydsicus (Neodesmoceras) mokotibensis Collignon, 1952, Sphenodiscus lobatus (Tuomey, 1854), Baculites spp., and Eubaculites carinatus (Morton, 1834). S. lobatus is known from the older Red Bank Sand and Tinton Sand in New Jersey; the other species are known only from the basal Hornerstown. Occurrences at the Inversand pit are regarded as either reworked or remainie, although details of Cretaceous/Paleocene boundary events have been destroyed by pervasive burrowing that pipes the Hornerstown down into the underlying Navesink Formation.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Maastrichtian ammonites from the Hornerstown Formation in New Jersey
Series title:
Journal of Paleontology
Volume
70
Issue:
5
Year Published:
1996
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Paleontology
First page:
798
Last page:
804