Mature Modifications and Dimorphism in Ammonoid Cephalopods

  • Richard Arnold Davis
  • Neil H. Landman
  • Jean-Louis Dommergues
  • Didier Marchand
  • Hugo Bucher
Part of the Topics in Geobiology book series (TGBI, volume 13)

Abstract

The shell of an ammonoid is a kind of autobiography of the animal that once occupied it. Different parts of the shell tell different parts of the life history. The growth lines and the tiny intervals in between, along with the shape of the shell itself, record what was happening at the anterior end of the body. The septa and their sutures relate the tale of the other extremity.

Keywords

Late Cretaceous Sexual Dimorphism Body Chamber Mature Modification United States National Museum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Richard Arnold Davis
    • 1
  • Neil H. Landman
    • 2
  • Jean-Louis Dommergues
    • 3
  • Didier Marchand
    • 3
  • Hugo Bucher
    • 4
  1. 1.Department of Chemistry and Physical SciencesCollege of Mount St. JosephCincinnatiUSA
  2. 2.Department of InvertebratesAmerican Museum of Natural HistoryNew YorkUSA
  3. 3.URA CNRS 157, Centre des Sciences de la TerreUniversité de BourgogneDijonFrance
  4. 4.Centre des Sciences de la TerreUniversité Claude-Bernard, Lyon IVilleurbanne CedexFrance

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