ˌōˌdän.ˈtäptərə̇s noun
Usage: capitalized
Etymology: New Latin, from odont- + Greek pteris fern; akin to Greek pteron wing, feather — more at feather
: a genus of fossil seed ferns found in the coal measures of the Carboniferous that have pinnatifid fronds with indistinct midribs and veins not forming a network