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Important orthoceras fossil
Paleozoic Era -500/-250MA
Tazzarine deposit, Morocco
Dimensions: H. 157; D. 24 (cm.)
Orthocerans were cephalopods with univalve shells, like their distant cousins the nautiluses are today, but the shell of the orthocerans was straight, hence their name. The size of the species varies from a few centimeters to eleven meters in length for the largest members of this family. Like all nautiloids (and unlike ammonoids) the siphon which connects the compartments of the shell is in an axial position. Nautiloids are quite common with a wide geographic distribution1 and extraordinary diversity in shapes. Large orthocerans were the main predators of the Paleozoic geological era. The lifestyle of these animals remains partly unknown.
Condition report: excellent condition, presented with a buttress to place it on, very stable
Related work: lot 437, Christies interior, H. 183 cm., sold £2000 hammer price
Ref: 7T9TLGWNDZ