Aegocrioceras sp. Heteromorph Ammonite
Aegocrioceras sp. Heteromorph Ammonite
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This Aegocrioceras sp. is a heteromorph ammonite. They are are an unusual group of ammonites whose shells developed in open, irregular, hook-shaped, or partly uncoiled forms, rather than the familiar tight spiral seen in most ammonites.
This piece has some repairs - not uncommon for heterormorphs.
Hannover, Germany
Cretaceous
65 million years old
Measures approximately 9cm.
More About Ammonites
More About Ammonites
Ammonites are extinct marine animals related to modern squid, octopus and nautilus. They lived in ancient seas for an incredible span of time, first appearing around 400 million years ago and becoming especially abundant during the Jurassic and Cretaceous periods before disappearing around 66 million years ago. Their distinctive coiled shells often preserve beautiful ribbing, chambers and natural patterns, while their rapid evolution makes them important fossils for helping geologists date ancient marine rocks.
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