Xenacanthini

plural noun

Xen·​acan·​thi·​ni

ˌzenəˌkanˈthīˌnī,

-ˈkan(t)thəˌnī

in some classifications

: a division of fossil elasmobranchs that is nearly equivalent to Ichthyotomi

Word History

Etymology

New Latin, from xen- + acanth- + -ini

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