Trapa sanyingiensis C.Del Rio et Su in Aung, Del Rio, Wang, Liu, Spicer & Su

Plant Fossil Names Registry Number: PFN002434

Act LSID: urn:lsid:plantfossilnames.org:act:2434

Authors: C. Del Rio & T. Su

Rank: species

Reference: Aung, A. T., Del Rio, C., Wang, T. X., Liu, J., Spicer, T. E. V. & Su, T. (2021): Fossil fruits and pollen grains of Trapa from the Upper Pliocene of the Sanying Formation (Yunnan, China). – Review of Palaeobotany and Palynology 293: 1–7.

Page of description: 3

Illustrations or figures: pl. I

Types

Original diagnosis/description

Diagnosis: Fruit bearing four horns, length of the fruit about half of the width measured at the upper horn level, neck cylindrical, protuberant, and wide, with the upper end of the neck below the line joining the bases of the upper horns, apical aperture with a ring of dense hairs, corona lacking; upper horns usually pointing upward, narrowly triangular or broadly triangular in outline, bearing harpoons apically, lower horns well developed and spiny, triangular in outline; two well-developed rounded tubercles present between the upper and lower horns; lower part of the body of the fruit obtriangular in outline, covered by longitudinal ribs.

Etymology

The specific epithet sanyingensis refers to the Sanying Formation where the fossil fruits were found.

Stratigraphy

Neogene, Pliocene
Sanying Formation, upper Pliocene

Locality

China
Yangjie coalmine, Longmen village, Yongping County, western Yunnan Province