8.6" Fossil Ammonite, Bivalve, and Belemnite Association - England

Fossil Ammonite, Bivalve, and Belemnite Association - England #211929

This is a very displayable, 8.6" wide ammonite, belemnite, gastropod, and bivalve fossil association, collected from Jurassic-age (Bajocian stage) Inferior Oolite of Dorset, England. The rock is covered in fossil specimens which include two bivalves, three belemnite rostrums, a small gastropod, and eight ammonites, with the largest ammonite (Otoites sauzei?) measuring 3.2" wide. The base of the rock has been cut flat so that it displays nicely without the need for a 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.

More about ammonites