trigo no carp on

[Pref. trigo no-, and Gr. Palæobot.: A genus of fo il plants founded on three or six angled nut-like fruits, commencing in the Devonian and abundant in the Carboniferous Rocks. The exterior of the fruit was probably fleshy. Itwas once believed to be a palm fruit; then Sir Joseph Hooker considered it the solitary fruit of the recent Salisburia, a taxad, though Principal Dawson believes it to have been Sigillarioid, Gr. kephale =the head.] trig-on-ở-çěph-a-lus, s . [Pref. trigo no- , and Zool.: A genus of Crotal ide, with three species, ranging from Mexico to Patagonia, Body elongate, fusiform, back slightly compre ed; head large and distinct from neck, depre ed, triangular; muzzle prominent, angular; tail short, tapering to a point; crown-shields small, scale-like; eye moderate, pupils vertical; scales keeled.