Quereuxia angulata (NEWBERRY) KRYSHTOFOVICH

Manchester, Steven R., 2014, Revisions To Roland Brown’S North American Paleocene Flora, Acta Musei Nationalis Pragae Series B 70 (3 - 4), pp. 153-210 : 177

Quereuxia angulata (NEWBERRY) KRYSHTOFOVICH

A distinctive floating aquatic plant known as Quereuxia angulata (NEWBERRY) KRYSHTOFOVICH ranged from the upper Cretaceous through Paleocene of North America and Asia ( Stockey and Rothwell 1997; as Trapago angulata ). The plant was called Trapa angulata (NEWBERRY) R. W. BROWN (1962) but represents an extinct genus. It was named Trapago by McIver and Basinger (1993) but this is a junior synonym of Quereuxia (see Hickey 2001 for nomenclatural review). The laterally compressed rhizome with attached leaves and roots illustrated as Trapa paulula (BELL) R. W. BROWN (1962) also appears to represent this genus.