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Extinct genus of molluscs From Wikipedia, the free encyclopedia
Izumonauta is an extinct genus of shelled octopods from the Mid to Late Miocene of Japan and New Zealand.[1]
Izumonauta Temporal range: Miocene | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Order: | Octopoda |
Family: | Argonautidae |
Genus: | †Izumonauta Kobayashi, 1954 |
Species | |
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The keels of Izumonauta eggcases lack tubercules and are intermediate in morphology between those of the earlier Obinautilus and later Argonauta.[2]
The New Zealand fossil material was described from the Kapitean Stage (uppermost Miocene).[3]
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