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中国东北晚白垩世酢酱草属(酢酱草科)一新种:嘉荫酢酱草

冯广平,刘长江,宋书银,马清温   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-05-10 发布日期:1999-05-10
  • 通讯作者: 冯广平

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   

  • Received:1900-01-01 Revised:1900-01-01 Online:1999-05-10 Published:1999-05-10
  • Contact: FENG Guang-Ping

摘要:

本文描述了发现于中国黑龙江省嘉荫县晚白垩世(土仑期至赛诺期)的酢酱草科酢酱草属新种
  Oxalis jiayinensis Feng,Liu,Song et Ma;炭化种子长约1 mm,宽不足1mm;新月形,两端钝;表面具9  ~10条横脊;种皮石细胞等轴、细胞壁明显加厚。该化石种是酢酱草科在地质时期迄今最早的代表。

关键词: 酢酱草属, 种子, 晚白垩世, 黑龙江

Abstract:

 Oxalis jiayinensis, sp. nov., is described from the Late Cretaceous (Turonian-
Senonian) 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