J Syst Evol ›› 1999, Vol. 37 ›› Issue (3): 264-268.

• Research Articles • Previous Articles     Next Articles

Oxalis jiayinensis, a new species of the Late Cretaceous from Heilongjiang, NE China

FENG Guang-Ping, LIU Chang-Jiang, SONG Shu-Yin, MA Qing-Wen   

  • Published:1999-05-10

Abstract: Oxalis jiayinensis, sp. nov., is described from the Late Cretaceous (TuronianSenonian) in Jiayin County, Heilongjiang Province, northeastern China. The seed is about 1 mm long, less than 1 mm in diameter, crescentic with obtuse apices and 9~10 transverse ribs. The seed wall is composed of equiaxial, strongly thickened sclereids. The fossil repre-sents the oldest occurrence of the family Oxalidaceae in the world.

Key words: Oxalis, Seed, Late Cretaceous, Heilongjiang