A new fossil flower from the Turonian of New Jersey:: Dressiantha bicarpellata gen. et sp. nov. (Capparales)

被引:77
作者
Gandolfo, MA [1 ]
Nixon, KC [1 ]
Crepet, WL [1 ]
机构
[1] Cornell Univ, Mann Lib 462, LH Bailey Hortorium, Ithaca, NY 14853 USA
关键词
Capparales; Dressiantha; fossil flower; paleobotany; Turonian; Upper Cretaceous;
D O I
10.2307/2446363
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Recent discoveries of fossil reproductive structures from deposits of the Raritan Formation in New Jersey (Turonian, Upper Cretaceous, similar to 90 million years BP) include a previously undescribed representative of the Order Capparales. The fossils are usually charcoalified with three-dimensional structure and excellent anatomical derails. In the present contribution, we introduce a taxon represented by fossil flowers that have a combination of characters now found in the families of the Order Capparales sensu Cronquist. The fossil species is characterized by an unique suite of characters, such as the presence of a gynophore, arrangement of the sepals, unequal petal sizer monothecal anthers, and a bicarpellate gynoecium, that are found in extant families of the Order Capparales. This new taxon constitutes an important addition to our understanding of Cretaceous angiosperm diversity and represents the oldest known fossil record for the Capparales. Heretofore, the oldest known capparalean was from the Late Tertiary sediments of North America.
引用
收藏
页码:964 / 974
页数:11
相关论文
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