First evidence for Wollemi Pine-type pollen (Dilwynites: Araucariaceae) in South America.
First evidence for Wollemi Pine-type pollen (Dilwynites: Araucariaceae) in South America.
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DOI:
10.1371/journal.pone.0069281
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Wilf P
中科院分区:
文献类型:
--
作者:
Macphail M;Carpenter RJ;Iglesias A;Wilf P
We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio Márquez Formation of Santa Cruz, Patagonia, Argentina, and are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Dilwynites was formerly known only from Australia, New Zealand, and East Antarctica. The Patagonian Dilwynites occurs with several taxa of Podocarpaceae and a diverse range of cryptogams and angiosperms, but not Nothofagus. The fossils greatly extend the known geographic range of Dilwynites and provide important new evidence for the Antarctic region as an early Paleogene portal for biotic interchange between Australasia and South America.
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影响因子:
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通讯作者:
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