1979 Edition


  • Graeme R. Stevens
Reference work entry
The Order Belemnitida comprises fossil coleoid (= dibranchiate) cephalopods that were the Mesozoic equivalents (but not ancestors, according to Jeletzky, 1966; see Fig. 1) of the modern squids (Order Teuthida) and cuttlefish (Order Sepiida).
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© Dowden, Hutchinson & Ross, Inc. 1979

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  • Graeme R. Stevens

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