.72" Agatized Ammonite (Promicroceras) Fossil - Lyme Regis

This is a very beautiful Promicroceras planicosta ammonite fossil which has been agatized, collected from the Lyme Regis region of England. It's almost translucent and has been nicely prepared so that it displays very well on the limestone slab. 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 ago and they barely survived several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

DETAILS
SPECIES
Promicroceras planicosta
LOCATION
Lyme Regis, Dorset, England
FORMATION
Lower Lias, Obtusum Zone
SIZE
Ammonite .72" wide, Rock 4 x 3.3"
ITEM
#103022
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.