20.2" Full Dorsal Dimetrodon Vertebra - Spine Sail
ONE OF A KIND PERMIAN MATERIAL!
With a fearsome jaw and reptilian appearance, Dimetrodon is often mistaken for a dinosaur. However, this family of Early Permian Age species falls into a disparate taxonomic clade known as synapsids which includes mammals. This specimen is a one of a kind, 20.2", full dorsal Dimetrodon fossil vertebra. The purpose of the spine sail is unknown, though speculation ranges from thermoregulation to sexual dimorphism, and perhaps even locomotion.
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