trigonid

Little black trigonid bees had their special quarry, a small deep valley in the midst of a waste of interlacing Bad Lands, on the side of a precipitous butte.

Edge of the Jungle William Beebe 1919

Here and there an ancient jointed stem was in blossom, a pinnacle of white filaments, and hour after hour there came little brown trigonid visitors, sting-less bees, whose nests were veritable museums of flower extracts -- tubs of honey, hampers of pollen, barrels of ambrosia, hoarded in castles of wax.

Edge of the Jungle William Beebe 1919

While the debate isn’t over, Old World peccaries do at least share characters with unambiguous American peccaries that aren’t seen in suids: a vertical lower canine located close to the premolar row, a prominent trigonid on the fourth upper premolar, thin enamel, and other features (Pickford & Morales 1989).

Why putting your hand in a peccary’s mouth is a really bad idea Darren Naish 2006

While the debate isn’t over, Old World peccaries do at least share characters with unambiguous American peccaries that aren’t seen in suids: a vertical lower canine located close to the premolar row, a prominent trigonid on the fourth upper premolar, thin enamel, and other features (Pickford & Morales 1989).

Archive 2006-08-01 Darren Naish 2006