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HETEROMORPH RAREST OF FOSSIL AMMONITE BARREMAIN AGE MOROCCO ANCYLOCERAS-Fossil Age Minerals

HETEROMORPH RAREST OF FOSSIL AMMONITE BARREMAIN AGE MOROCCO ANCYLOCERAS

$72.99

From: Agadir, Morocco

Weight: 2.6 Ounces

Dimension: 2.6 Inches long, & 1.8 Inches Wide 

Cretaceous Barremian Stage (117-113 million-year-old)

The items pictured are the ones you will receive. 

This is a real Ammonite, not a replica.


This is an Ancyloceras (Audiloceras) ammonite. It has what is known as heteromorph shape. While most ammonites have spiral sheels that retain the same shape throughout growth (homeomorph), a major group of ammonites, the Ancyloceratina, emerged during the Late Jurassic that had uncoiled shells and was called heteromorph ammonites (different-shaped). While little is known of their mode of life, was uncoiled shells would have precluded fast swimming. They may have wobbled their way through the water column with out-splayed tentacles, sweeping whatever came within their reach into their hungry mouths. As all ammonites, these went extinct at the end of the Cretaceous.


Ammonites Fossi


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