Affordable Access

A lower jaw of the nautiloid Aturia angustata (Conrad, 1849) from Oligocene cold seep limestone, Washington State, U.S.A.

Authors
Publication Date
Source
eScholarship - University of California
Keywords
  • Oligocene, Nautiloid Jaw, Aturia, Washington State
External links

Abstract

Fossil shells of the extinct nautiloid genus Aturia have been found in Cenozoic strata in many parts of the world, and yet there have only been two previous records of fossils of any part of the jaw apparatus of Aturia. This suggests that the jaws were only preserved by virtue of special, highly localized conditions. A fossilized lower jaw referable to Aturia has been found in western Washington State, USA, associated with two shells of Aturia angustata within a piece of limestone that formed as a result of localized hydrocarbon seepage on the deep-sea floor. This is the first report of a nautiloid jaw from Cenozoic strata of western North America, and the first report of any part of the jaw apparatus for A. angustata.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments