Is this some kind of joke?
1. Did vampire squids filaments evolve from tentacles?
2. When did octopuses and vampire squids split, was it before pohlsepia was around?
3. Did pohlsepia have a gladius? If not did it loose it independantly from modern day octopuses? (palaeoctopus had a gladius and it was around along time after pohlsepia).
4. Do squids, cuttlefish and vampire squids have many neurons in their legs/tentacles like octopuses have?
5. How many brains do cephalopods apart from octopuses have and where are they located?