7.2" Cretaceous Fossil Ammonite (Placenticeras) - Texas
This is a 7.2" wide ammonite (Placenticeras cumminsi) from the Britton Formation of Dallas, Texas. 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. Ammonites appeared in the fossil record about 240 million years. The last lineages disappeared 65 million years ago at the end of the Cretaceous.
SPECIES
Placenticeras cumminsi
AGE
LOCATION
Dallas Texas
FORMATION
Britton Formation
SIZE
7.2" wide
CATEGORY
ITEM
#157233
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