FOSSIL POLLEN GENUS CLASSOPOLLIS

被引:91
作者
SRIVASTAVA, SK [1 ]
机构
[1] STANDARD OIL CALIF, CHEVRON OIL FIELD RES CO, LA HABRA, CA 90631 USA
关键词
D O I
10.1111/j.1502-3931.1976.tb00985.x
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The generic name Classopollis Pflug, 1953, is considered as a valid usable name for Mesozoic spherical pollen characterized by a subequatorial circumpolar canal, a thickened equatorial band, a distal crytopore and a proximal tetrad scar. A study of Classopollis exine revealed the absence of nexine. Classopollis has a worldwide distribution in Upper Triassic-Turonian strata. Plants producing Classopollis have affinity with araucarian and/or gnetalean conifers. They occupied well-drained soils of upland slopes and lowlands near coastal areas, preferring the warm climate of transgressive seas.
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页码:437 / 457
页数:21
相关论文
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