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New gametophytes from the Early Devonian Rhynie chert

Published online by Cambridge University Press:  26 July 2007

Hans Kerp
Affiliation:
Forschungsstelle für Paläobotanik, Westfälische Wilhelms- Universität, Hindenburgplatz 57, D-48143 Münster, Germany.
Nigel H. Trewin
Affiliation:
Department of Geology and Petroleum Geology, University of Aberdeen, aAberdeen AB24 3UE, UK.
Hagen Hass
Affiliation:
Forschungsstelle für Paläobotanik, Westfälische Wilhelms- Universität, Hindenburgplatz 57, D-48143 Münster, Germany.

Abstract

Several new gametophytes are described from the Early Devonian Rhynie chert. The new monotypic genus Remyophyton, being the gametophyte of Rhynia, is represented by a dense stand of in situ preserved gametophytes with antheridia- and archegonia-bearing axes. The gametophytes are remarkably small in comparison to those of other Rhynie chert plants. The generic diagnoses of Lyonophyton and Langiophyton are emended to include archegonia- and antheridiabearing axes. All essential stages of the reproductive cycle, i.e. sporophytes, and male and female gametophytes, can now be demonstrated for three of the six land plants from the Rhynie chert, i.e. Rhynia gwynne-vaughanii, Aglaophyton major and Horneophyton lignieri.

Type
Research Article
Copyright
Royal Society of Edinburgh 2003

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