科研之友
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摘要
Anatomically preserved infructescences of Sarbaicarpa shilinii gen. et sp. nov. are described from the Cenomanian-Turonian of Kazakhstan and assigned to the Hamamelidales on the basis of their microstructure. The infructescence consists of about 30 free broadly cuneate fruits. The fruits are monocarpellate, without stylode, and basally with hairs. The seed is solitary and anatropic. Two types of sterile elements are present: (1) semispherical structures that are comparable in size to the fruits and densely covered with rounded trichomes and (2) narrow linear structures reaching more than a half of the fruit length. The new genus is characterized by a mosaic of platanaceous and hamamelidaceous characters. The plant remains are found associating with fossil leaves of the typically Platanus aspect.
- 出版日期2009-12
