This Specimen has been sold.
8.6" Plate with Ammonite (Acanthopleuroeras) Fossils - Dorset, England
This is a 8.6" wide plate of Jurassic aged, agatized fossil ammonites (Acanthopleuroeras sp.) from Dorset England. The largest ammonite is 3.2" wide. This plate comes with a gibson display 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.