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TITLE: Heptranchias howellii (Reed, 1946) (Selachii: Hexanchidae) in the Eocene of the United States and British Columbia
AUTHOR: Bruce J. Welton
JOURNAL: PaleoBios
PUBLISHED: 1974
NOTES: no. 17
ABSTRACT: Notidanion howellii Reed, 1946 (Selachii: Hexanchidae) from the Eocene Shark River Formation of New Jersey is referred to the genus Heptranchias. Teeth of Heptranchias from the Eocene of Vancouver Island, British Columbia, the Lincoln Creek Formation of Washington, and the Keasey and Nestucca Formations of Oregon are considered to be conspecific with Heptranchias howellii. H. howellii is chronologically restricted to strata of Narizian and lower Refugian age in the northeastern Pacific and is interpreted to be a deep water form, occurring in association with upper bathyal-lower neritic invertebrate faunas.
COLLECTION: PaleoBios Archive Public
ID: 203

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    BNHM      University of California, Berkeley