2.5" Cretaceous Fossil Ammonite (Calycoceras) - Texas

This is a 2.5" fossil ammonite (Calycoceras tarrantense) from Tarrant County, Texas. The ridges on the center line of this specimen are still present and really cool.

Comes with an acrylic 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.

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
Tarrant County, Texas
FORMATION
Woodbine Group
SIZE
2.5" wide
CATEGORY
ITEM
#198216
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