Dimetrodon, pronounced (die-MET-roh-don) which means ("two measures of teeth" so named because it had a large skull with two different types of teeth; shearing teeth and sharp canine teeth, unlike reptiles. Dentition showing this differentiation of teeth is called heterodonty).
Dimetrodon has a large sail which was probably used to regulate body temperature; the surface area would allow it to warm up or cool off more efficiently. Dimetrodon was not a dinosaur but a pelycosaur, an early synapsid (mammal-like reptile).
Dimetrodon skeleton resin & fiberglass
Dimetrodon skull cast replica
Cast in resin.
Dimetrodon limbatus Skull (BYU)
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