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Endoceras

noun En·doc·er·as \ enˈdäsərəs \

Definition of Endoceras

: a genus (the type of the family Endoceratidae) of Ordovician and Silurian nautiloid cephalopods with a straight shell having a very large siphuncle and endocones and reaching a length of 12 feet
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endoceratid

\¦endō¦serətə̇d\ adjective or noun

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Origin and Etymology of endoceras

New Latin, from end- + -ceras

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