Gorgeous 1.8" Asteroceras Ammonite Fossil - Agatized

Gorgeous Asteroceras Ammonite Fossil - Agatized #30741

This is a gorgeous, agate replaced Asteroceras obtusum ammonite fossil from the Lyme Regis region of England. It's almost translucent and has been nicely prepared so that it displays nicely in a slab of limestone.

The ammonite itself is 1.8" wide and is on a 7" wide and 4" tall slab of limestone. The base of the limestone has been cut flat so 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.