6502 

Dimetrodon Fossil Leg Bone Section Group. Permian Period, c.286-270 million years B.P.. A group of two Dimetrodon sp. fossil leg bone sections. 147 grams total, 65-72 mm (2 1/2 - 2 3/4 in.) From the Texas Red Beds, USA. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection. Dimetrodon, (genus Dimetrodon), is an extinct relative of primitive mammals that is characterized by a large, upright, sail-like structure on its back. [2, No Reserve]

londres, Royaume-Uni