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Cretaceous (Late Albian) coniferales of Alexander Island, Antarctica. 2. Leaves, reproductive structures and roots
Review of Palaeobotany and Palynology ( IF 1.9 ) Pub Date : 2001-06-01 , DOI: 10.1016/s0034-6667(01)00053-7
D J. Cantrill 1 , H J. Falcon-Lang
Affiliation  

Coniferous foliage from the Albian of Alexander Island, Antarctica, is assigned to the Araucariaceae, Podocarpaceae, and Taxodiaceae based on attached or associated fertile remains. Araucarian foliage represented by Araucaria alexandrensis sp. nov. and A. chambersii sp. nov. is associated with ovulate cone scales described as Araucarites wollemiaformis sp. nov. and A. citadelbastionensis sp. nov., respectively. The Podocarpaceae is represented by Bellingshausium willeyii sp. nov. and the Taxodiaceae by Athrotaxites ungeri, both with attached cones. Sterile foliage is widespread belonging to the form genera Podozamites, Elatocladus, Brachyphyllum and Pagiophyllum. The conifers in this Albian southern high-latitude flora make up ca. 15% of the species diversity. Evidence from leaf litter distribution on palaeosols and leaf morphology suggest that the majority of conifers were large canopy-forming trees, although a few were probably small understorey shrubs.

中文翻译:

南极洲亚历山大岛的白垩纪(晚阿尔比安)针叶树。2. 叶、生殖结构和根

来自南极洲亚历山大岛阿尔比安的针叶植物根据附着或相关的肥沃遗骸被归入南洋杉科、罗汉松科和杉科。以南洋杉属 alexandrensis sp. 为代表的南洋杉树叶。十一月 和 A. Chambersii sp。十一月 与被描述为 Araucarites wollemiaformis sp. 的排卵锥鳞片有关。十一月 和 A. citadelbastionensis sp。十一月,分别。罗汉松科以 Bellingshausium willeyii sp 为代表。十一月 和 Athrotaxites ungeri 的 Taxodiaceae,两者都带有锥体。不育叶广泛分布于 Podozamites、Elatocladus、Brachyphyllum 和 Pagiophyllum 属。这个阿尔比安南部高纬度植物群中的针叶树构成了大约。15%的物种多样性。
更新日期:2001-06-01
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