Fossils: Ammonoids evolution

Ref:506061
  • Zoom on the primitive cephalopods: Appearing in Cambrian from more than 500 million years, they have diversified throughout the primary era They peaked with the ammonites during the secondary era and then declined thereafter.
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Data sheet Fossils: Ammonoids evolution

Description

Selection of 3 families appearing successively. The resumption of the common organization and the appearance of new characters suggest the notion of evolution.
Type of fossils Molding
Type of product Maquettes et matériel expérimental, géologie

Other Specifications

3 moulages :
- goniatite,
- cératite,
- ammonite.

Dimensions : de 3 cm à 10 cm.