Lot 251: Orthoceras. A large museum-quality fossil Orthoceras species (uncoiled Nautiloid), Atlas Mountains, Morocco, 450 million years old, 100 cm high Orthoceras was an ancient mollusc that lived more than 400 million years ago. The name means straight horn, referring to the characteristic long, straight, conical shell. (1)
Dominic Winter's Travel & Natural History Maps, Prints & Sporting Art Early Printed Books Military History
Wednesday, 11th November 2015
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