The Jaw Apparatus of the Late Cretaceous Ammonite Didymoceras

Isabelle Kruta; Neil H. Landman; Isabelle Rouget; Fabrizio Cecca; Neal L. Larson

doi:10.1666/09-110.1

We can help you reset your password using the email address linked to your BioOne Complete account.

Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches. Please note that a BioOne web account does not automatically grant access to full-text content. An institutional or society member subscription is required to view non-Open Access content. Contact helpdesk@bioone.org with any questions.

All Fields are Required

First Name

Last/Family Name

Password

Password Requirements: Minimum 8 characters, must include as least one uppercase, one lowercase letter, and one number or permitted symbol Valid Symbols for password:
~ Tilde
! Exclamation Mark
@ At sign
$ Dollar sign
^ Caret
( Opening Parenthesis
) Closing Parenthesis
_ Underscore
. Period

Confirm Password

Web Account created successfully

Isabelle Kruta,¹ Neil H. Landman,² Isabelle Rouget,³ Fabrizio Cecca,³ Neal L. Larson⁴

¹Muséum National d'Histoire Naturelle (MNHN), UMR 7207 «Centre de recherche sur la Paléobiodiversité et les Paléoenvironnements». UPMC, Case 104 – 4 Place Jussieu, 75252 Paris Cedex 05, France < > kruta@mnhn.fr
²Division of Paleontology (Invertebrates), American Museum of Natural History, New York, New York 10024, U.S.A. < > landman@amnh.org
³Université Pierre et Marie Curie, UMR 7207 «Centre de recherche sur la Paléobiodiversité et les Paléoenvironnements». UPMC, Case 104 – 4 Place Jussieu, 75252 Paris Cedex 05, France < > < > isabelle.rouget@upmc.fr fabrizio.cecca@upmc.fr
⁴Black Hills Institute of Geological Research, Inc., 117 Main Street, Hill City, South Dakota 57745, U.S.A. < > ammoniteguy@bhigr.com

Abstract

We report on well-preserved upper and lower jaws found inside the body chambers of two specimens of Didymoceras nebrascense (Meek and Hayden, 1856) from the Upper Cretaceous Pierre Shale of the USA. The finds are described and compared to existing material, and their possible functions are discussed.

Citation Download Citation

Isabelle Kruta, Neil H. Landman, Isabelle Rouget, Fabrizio Cecca, and Neal L. Larson "The Jaw Apparatus of the Late Cretaceous Ammonite Didymoceras," Journal of Paleontology 84(3), 556-560, (1 May 2010). https://doi.org/10.1666/09-110.1

Accepted: 1 December 2009; Published: 1 May 2010

You currently do not have any folders to save your paper to! Create a new folder below.