Tractor Ammonite
SKU: 97464
Tractor Ammonite
SKU: 97464
Regular price$2995
$29.95
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"Tractor" Ammonite - Douvilleiceras mammilatum
Upper Early Cretaceous, Albian Stage
Mahajanga Province, Madagascar
Reminiscent of the tires of a tractor, Tractor Ammonites, or Douvilleiceras, are identified by their ridges around the shell.
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.
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