Name: Proteroctopus.
Phonetic: Pro-teh-ok-toe-pus.
Named By: J.‭ ‬C.‭ ‬Fischer‭ & ‬B.‭ ‬Riou‭ ‬-‭ ‬1982.
Classification: Mollusca, Cephalopoda, Octopodiformes,‭ ‬Octapoda.
Species: P.‭ ‬ribeti.
Diet: Carnivore.
Size: Unavailable.
Known locations: France.
Time period: Callovian of the Jurassic.
Fossil representation: Preserved flat on a rock slab.

       A primitive Jurassic era cephalopod,‭ ‬Proteroctopus has relatively thin and short arms when compared to the size of the mantle.‭ ‬The small size of the arms suggests that Proteroctopus was probably a pelagic organism that floated around in open water,‭ ‬since the arms were not developed enough to grip and move along the ocean floor.‭ ‬This may in turn suggest that Proteroctopus lived within the darker layers of the ocean,‭ ‬therefore relying upon cover of darkness to protect it from all but the best adapted predators of the time, just as similar cephalopods do today.

Further reading
-Le plus ancien octopode connu‭ (‬Cephalopoda,‭ ‬Dibranchiata‭)‬:‭ ‬Proteroctopus ribeti nov.‭ ‬gen.,‭ ‬nov.‭ ‬sp.,‭ ‬du Callovien de l'Ardèche‭ (‬France‭)‬,‭ ‬J.‭ ‬C.‭ ‬Fischer‭ & ‬B.‭ ‬Riou‭ ‬-‭ ‬1982.


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