4" Phylloceras Ammonite Fossil - England

This is a thick, 4" wide Phylloceras ammonite collected in North Yorkshire, England. This particular specimen has a partially pyritized shell.
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.
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DETAILS
SPECIES
Phylloceras sp.
LOCATION
North Yorkshire Coast, United Kingdom
SIZE
4" wide
ITEM
#42666
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