The anatomy of Lower Devonian Gosslingia breconensis Heard based on pyritized axes, with some comments on the permineralization process

Kenrick, P. and Edwards, Dianne ORCID: https://orcid.org/0000-0002-9786-4395 1988. The anatomy of Lower Devonian Gosslingia breconensis Heard based on pyritized axes, with some comments on the permineralization process. Botanical Journal of the Linnean Society 97 (2) , pp. 95-123. 10.1111/j.1095-8339.1988.tb02456.x

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Abstract

Xylem and peripheral support tissues are described in axes of Gosslingia breconensis preserved as iron sulphide permineralizations. The distribution of coalified (organic) material and the various textures of pyrite are explained in terms of the relative decay rates of cell contents, cellulose and lignin, and the microbial anaerobic production of iron sulphide. It is suggested that coalified layers mainly represent regions of lignification. The xylem, described using Bierhorst's terminology, comprises indirectly attached both spiral and annular elements and is considered similar to that in many other zosterophylls, in plants of more controversial affinity, e.g. Baragwanathia and Drepanophycus, and in some extant pteridophytes.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Earth and Environmental Sciences
Subjects:	Q Science > QE Geology Q Science > QK Botany
Uncontrolled Keywords:	Cellulose; lignin; microbial degradation; sulphur reducing bacteria; tracheids
Publisher:	Linnean Society of London
ISSN:	0024-4074
Last Modified:	18 Oct 2022 12:31
URI:	https://orca.cardiff.ac.uk/id/eprint/10182

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