Fossil woods in interglacial sediments from the Carboniferous Hoyada Verde Formation, San Juan Province, Argentina

被引：10

作者：

Pujana, Roberto R. ^{[1
]}

Cesari, Silvia N. ^{[1
]}

机构：

[1] Museo Argentino Ciencias Nat Bernardino Rivadavia, Buenos Aires, DF, Argentina

来源：

PALAEONTOLOGY | 2008年 / 51卷

关键词：

Cuyoxylon multipunctatus; wood anatomy; Carboniferous; Gondwana; glaciation; Argentina;

D O I：

10.1111/j.1475-4983.2007.00741.x

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

Fossil woods are described and assigned to Cuyoxylon multipunctatus gen. et sp. nov. The woods were deposited in shales from an interglacial period, and are the first to be described in detail from the Carboniferous glaciation of western Gondwana. They have the primitive characters of Early Carboniferous woods, such as mesarch protoxylem and numerous contiguous pits in an alternate arrangement. They are the oldest fossil woods to have been described from South America. The growth ring characteristics are consistent with a seasonal cool climate.

引用

页码：163 / 171

页数：9

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