18.7" Ammonite (Paracoroniceras) Fossil - Dorset, England

This is a spectacular specimen of the Lower Jurassic ammonite Paracoroniceras lyra from Lyme Regis region of England. It's 18.7" wide and was originally found inside of a concretion that was almost completely prepped away. The display side of the ammonite has had the rock carefully removed and lightly polished while the reverse side still shows the surrounding concretion. The very center of the ammonite has been restored, as this area is frequently not well preserved on larger ammonites.

Comes with a metal display stand.

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. 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.
Paracoroniceras lyra
Monmouth Beach, Lyme Regis, Dorset, England
Lower Lias, Bucklandi Zone
18.7" across, 52 1/2 lbs.
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