3.6" Jurassic Ammonite (Dactylioceras) Fossil - England

This is a classic British ammonite of the species Dactylioceras (Orthodactylites) tenuicostatum. These well preserved ammonites are Jurassic in age and are found in hard concretions that must be split open to reveal the fossil. The hard rock then has to be removed mechanically to further expose the fossil.

One edge of the nodule has been cut flat for presentation purposes.

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.
FOR SALE
$69
DETAILS
SPECIES
Dactylioceras (Orthodactylites) tenuicostatum
LOCATION
Nr. Whitby, North Yorkshire, England
SIZE
3.6" wide
ITEM
#279540
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