Pleuracanthus

noun

Pleu·​ra·​can·​thus

ˌplu̇rəˈkan(t)thəs

: a genus (the type of the family Pleuracanthidae) of Paleozoic sharks of the Carboniferous and Lower Permian of Europe and North America having a subterminal mouth, long dorsal fin, and a strong serrated spine on the nape

Word History

Etymology

New Latin, from pleur- + -acanthus

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