期刊
LETHAIA
卷 54, 期 1, 页码 96-105出版社
SCANDINAVIAN UNIV PRESS-UNIVERSITETSFORLAGET AS
DOI: 10.1111/let.12386
关键词
Anatomy; Antarctica; fossil tree; Palaeozoic; Paleobotany
类别
资金
- US National Science Foundation [1443546]
The discovery of glossopterid rootlets growing in the late Permian tree trunk suggests facilitative interactions among glossopterid trees, aiding their expansion in high-palaeolatitude environments. The existence of self-facilitation may have contributed to the growth of glossopterids in various environments.
The biology of trees that grew in high-latitude forests during warmer geological periods is of major interest in understanding past and future ecosystem dynamics. As we study the different plants that composed these forests, it becomes possible to make comparisons with ecosystem processes that occur today. Here we describe a silicified late Permian (Lopingian) glossopterid (seed fern) trunk from Skaar Ridge, central Transantarctic Mountains, Antarctica, with evidence of glossopterid rootlets growing into its wood. The specimen is interpreted as a nurse log similar to those seen in some extant forests. Together with evidence of glossopterid roots growing within the lacunae of older roots, this new specimen suggests the existence of facilitative interactions among the glossopterid trees that dominated the high-latitude forests of Gondwana during the late Permian. More generally, the existence of self-facilitation might have favoured the expansion of glossopterids within various environments, especially those at high palaeolatitudes, during the Permian icehouse to greenhouse transition.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据