Cephalopods are bilaterally symmetrical swimming marine carnivore molluscs that include modern day cuttlefish, octopus, squid, pearly Nautilus, and a large number of and mostly Paleozoic and Mesozoic forms. At present there are 800 living cephalopod species (~175 genera) and more than 17,000 (~600 genera) fossil forms; these are the largest group after Arthropods.
CITATION STYLE
Jain, S. (2017). Cephalopods. In Springer Geology (pp. 31–102). Springer. https://doi.org/10.1007/978-81-322-3658-0_3
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