2.1" Ammonite (Promicroceras) Cluster - Somerset, England

The ammonites are of the species Promicroceras marstonense and are Lower Jurassic (~200 million years old) in age. This rock is quarried from near Marston Magna, Somerset, England with many beautiful detailed ammonites can be seen. The base has been cut flat so it will display without the use of a stand.

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
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DETAILS
SPECIES
Promicroceras marstonense
LOCATION
Marston Magna, Somerset, England
FORMATION
Lower Lias, Obtusum Zone
SIZE
2.1"x2"
ITEM
#86236
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