4.5" Agatized Promicroceras Ammonite Cluster - Dorset, England

 
This is a beautiful cluster of agatized, Promicroceras planicosta ammonites from the Lyme Regis region of England. They arealmost translucent and has been nicely prepared so that it displays very nicely in a slab of limestone. The base has been cut flat so that it stands up nicely on a hard surface. The entire piece is 4.5" tall with the largest ammonite being .9" across.

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.
FOR SALE
$245 $175
DETAILS
SPECIES
Promicroceras planicosta
LOCATION
Charmouth, Dorset, England
FORMATION
Lower Lias, Obtusum Zone
SIZE
4.5" Tall, 3.6" wide, largest ammonite .9"
ITEM
#65363
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