1.1" Fossil Ammonite (Promicroceras) - Lyme Regis

This is a very beautifully agatized, 1.1" Promicroceras planicosta ammonite fossil, collected from Lyme Regis, England. It's almost translucent and has been nicely prepared so that it displays very well on the limestone slab.

Comes with an acrylic stand.

Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. True ammonites appeared in the fossil record about 240 million years ago. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
Promicroceras planicosta
Lyme Regis, Dorset, England
Lower Lias, Obtusum Zone
1.1" ammonite , 4.4 x 3.2" rock
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