7.8" Fossil (Androgynoceras) Ammonite with Bite Mark - England
This is a 9" wide plate of ammonites that was collected from the Lower Jurassic, Lower Lias - Daveoi Zone of Dorset, England. The ammonites have been exposed from the rock they were found in. The largest ammonite (Androgynoceras lataecosta) has a bite mark taken out of it from a predator. This specimen comes with an acrylic/metal (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.
Golden Cap, Charmouth, Lyme Regis, Dorset, England
Lower Lias - Daveoi Zone
Largest ammonite 7.8" wide, entire specimen is 9 x 6.7"