Fossils: 5 stages ammonites

Ref:506054
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: 5 stages ammonites

Description

They cover the entire period of secondary school, the different forms show the extent of diversification of this group of victim in fien of the mass extinction of the crisis "K. T" 5 moldings. Mediterranean fruit fly, Hildoceras, Bifrons, Cardioceras, Acrioceras, Acanthoceras.
Type of fossils Molding
5 moulages :
- cératite,
- Hildoceras bifrons,
- Cardioceras,
- Acrioceras,
- Acanthoceras.

Dimensions : de 3 cm à 10 cm.

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