Transactions of the Royal Society of Edinburgh: Earth Sciences

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Transactions of the Royal Society of Edinburgh: Earth Sciences (2003), 94:411-428 Royal Society of Edinburgh Scotland Foundation
Copyright © Royal Society of Edinburgh 2003
doi:10.1017/S026359330000078X

Research Article

New gametophytes from the Early Devonian Rhynie chert


Hans Kerpa1, Nigel H. Trewina2 and Hagen Hassa1

a1 Forschungsstelle für Paläobotanik, Westfälische Wilhelms- Universität, Hindenburgplatz 57, D-48143 Münster, Germany.
a2 Department of Geology and Petroleum Geology, University of Aberdeen, aAberdeen AB24 3UE, UK.
Article author query
kerp h [Google Scholar]
trewin nh [Google Scholar]
hass h [Google Scholar]

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.

(Received November 12 2003)

(Accepted July 13 2004)

Key Words: Devonian; Lyonophyton; Laugiophyton; ontogeny; Remyophyton; Rhynia