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RE: Ammonite colouration (was Re: SVP Preview)
>> Their respiratory system was composed of 2 "branchies"
(sorry, my English doesn't go that far) only.<<
Wow! Two gills only? That's huge! A single pair of gills is what
separates squid, octopuses, etc. (coleoids) from nautiloids. That fact
that someone knows how many gills (not to mention tentacles) ammonites
had is extremely important---how is it that this fact isn't common
knowledge?
Dan