Cephalopod: Diplomoceras maximum (PRI 13889)

Description

Fossil specimen of the heteromorph ammonoid *Diplomoceras maximum*, on display at the [Museum of the Earth](http://www.priweb.org) in Ithaca, New York (PRI 13889). This specimen was discovered by Dr. William Zinsmeister and Dr. Anton Oleinik in Cretaceous-aged rocks on Seymour Island, Antarctica. The complete length of this twisted ammonoid's shell is approximately 4 meters. Model created by Emily Hauf.