ACTINOCERATIDAACTINOCERATIDA
| Papua NewGuinea 1968 |
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| Nautilus Nautilus pompillus (Argonautidae) |
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| Rayonnoceras Rayonnoceras (Carbactinoceratidae) (ACTINOCERATIDA) |
Nautilus Nautilus pompilius (Argonautidae) (ACTINOCERATIDA) |
Actinoceratida inhabits the South Pacific - Australia sea near the shore with the Cephalopoda which were in the husk and lives in about 100m - 600m depth of the water. There is the image to like the deep sea, but a husk cannot endure the water pressure in the place beyond 800m, and the depth of the water is broken. The ancestor is born 450,000,000 years ago - 500,000,000 years ago, and it is a creature said to that then it hardly evolve.
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