4.3" Ammonite (Placenticeras) Fossil - Eastern Montana

This is a 4.3" fossil ammonite (Placenticeras meeki) from the Bearpaw Shale in Eastern, Montana. This comes out of an old collection of ammonite fossils we recently acquired including some from some unusual locations. Includes 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.

FOR SALE
$295
DETAILS
SPECIES
Placenticeras meeki
LOCATION
Eastern Montana
FORMATION
Bearpaw Shale
SIZE
4.3" wide
CATEGORY
ITEM
#180803
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.