caa a22 4500 388110317 CHVBK 20180307125351.0 cr unu---uuuuu 161130s1999 xx s 000 0 eng 10.1017/S0263593300002662 doi S0263593300002662 pii (NATIONALLICENCE)cambridge-10.1017/S0263593300002662 A new vascular plant from the Lower Devonian Windyfield chert, Rhynie, NE Scotland [Elektronische Daten] Two plants are described from fragmentary remains preserved in the Windyfield chert, situated c. 600 m from the classic Rhynie chert locality. Both are sometimes coated by a microbial film. The larger, fertile axes are placed in the new genus and species Ventarura lyonii. They possess a distinctive, sclerenchymatous middle cortex and terete xylem, and marginally dehiscent, lateral sporangia. The new taxon is similar to the Rhynie zosterophyll Trichopherophyton teuchansii, but is placed in a new genus on sporangial differences. Associated smaller axes with unicellular epidermal outgrowths lack the middle cortex of the larger axes and often have medullated protosteles. They are interpreted as subterranean rhizomes and probably belong to the new fertile taxon, but organic continuity between the two has not been demonstrated. Copyright © Royal Society of Edinburgh 1999 hot-spring sinter nationallicence microbial film nationallicence tracheophyte nationallicence Ventarura nationallicence zosterophyll nationallicence Powell Clare L. Department of Earth Sciences, Cardiff University, PO Box 914, Cardiff CF10 3YE, UK. Edwards Dianne Department of Earth Sciences, Cardiff University, PO Box 914, Cardiff CF10 3YE, UK. Trewin Nigel H. Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen AB24 3UE, UK. Transactions of the Royal Society of Edinburgh: Earth Sciences Royal Society of Edinburgh Scotland Foundation 90/4(1999), 331-349 0263-5933 90:4<331 1999 90 TRE https://doi.org/10.1017/S0263593300002662 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0263593300002662 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Powell Clare L. Department of Earth Sciences, Cardiff University, PO Box 914, Cardiff CF10 3YE, UK NATIONALLICENCE 700 1- Edwards Dianne Department of Earth Sciences, Cardiff University, PO Box 914, Cardiff CF10 3YE, UK NATIONALLICENCE 700 1- Trewin Nigel H. Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen AB24 3UE, UK NATIONALLICENCE 773 0- Transactions of the Royal Society of Edinburgh: Earth Sciences Royal Society of Edinburgh Scotland Foundation 90/4(1999), 331-349 0263-5933 90:4<331 1999 90 TRE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge