A late Wenlock flora from Co. Tipperary, Ireland
作者:
D. EDWARDS,
J. FEEHAN,
D. G. SMITH,
期刊:
Botanical Journal of the Linnean Society
(WILEY Available online 1983)
卷期:
Volume 86,
issue 1‐2
页码: 19-36
ISSN:0024-4074
年代: 1983
DOI:10.1111/j.1095-8339.1983.tb00715.x
出版商: Blackwell Publishing Ltd
关键词: Cooksonia;land plants;palynomorphs;Silurian
数据来源: WILEY
摘要:
An assemblage of macroplants preserved as highly coalified compressions which lack anatomy is described from a Wenlock locality in County Tipperary, Ireland. Most of the fertile specimens are assigned toCooksoniaLang. The taxonomic status of this genus is discussed. Some poorly preserved palynomorphs, including miospores, acritarchs, chitinozoans and a variety of tubes, have been isolated from associated sediments, but the age of the flora is based on graptolites. Sedimentological and palaeontological studies of the region are summarized. They provide little direct evidence for the habitats of the plants which are considered to have been terrestrial. The relevance of this flora to the current debate on the colonization of the land is evaluated and it is concluded that these plants provide the earliest record of erect fertile land plants of possible pteridophyte affinity.
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