Agatized Fossil Ammonites (Promicroceras) - Lyme Regis

This is 2 very beautifully agatized, Promicroceras planicosta ammonite fossils, collected from Lyme Regis, England. They are almost translucent and have been nicely prepared to display very well on the limestone slab. The incomplete ammonite appears to still be contained within the rock.

Comes with an acrylic 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.

FOR SALE
$29
DETAILS
SPECIES
Promicroceras planicosta
LOCATION
Lyme Regis, Dorset, England
FORMATION
Lower Lias, Obtusum Zone
SIZE
.8" complete , .9" incomplete, 5.1 x 4.8" rock
ITEM
#110722
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