Pseudorthocerataceae Temporal range: Ordovician
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Superfamily: | Pseudorthocerataceae Sweet (1964)
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Pseudorthocerataceae is an extinct superfamily of actively mobile carnivorous cephalopod, essentially a Nautiloid, that lived in what would be North America, Europe, Australia, and Asia during the Ordovician from 490—445.6 mya, existing for approximately 44.4 million years.[1]