2.5" Fossil Ammonite (Calycoceras) - Texas

This is a 2.5" fossil ammonite (Calycoceras) from Dallas County, Texas. It is in good condition with the outer shell missing in areas that allow the intricate inner shell sutures to be seen.

Comes with an acrylic 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.
What an ammonite would have looked like while alive.
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DETAILS
SPECIES
Calycoceras tarrantense
LOCATION
Dallas County, Texas
FORMATION
Woodbine Group
SIZE
2.5" wide
CATEGORY
ITEM
#117209
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