A New Definition and a Lectotypification of the Genus Cooksonia Lang 1937

  title={A New Definition and a Lectotypification of the Genus Cooksonia Lang 1937},
  author={Paul Gonez and Philippe Gerrienne},
  journal={International Journal of Plant Sciences},
  pages={199 - 215}
The genus Cooksonia Lang 1937 includes some of the earliest land plants. Specimens of Cooksonia pertoni Lang 1937 are considered the earliest Eutracheophytes. The definition of the genus is thus central to the delineation of the clade. However, the generic diagnosis is problematic. It is not restrictive enough, and most of the few diagnostic characters are plesiomorphic. Observations on new specimens of Cooksonia paranensis Gerrienne et al. 2001, a species very close to C. pertoni, considered… Expand
Aberlemnia caledonica gen. et comb. nov., a new name for Cooksonia caledonica Edwards 1970
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Abstract Two diminutive new taxa of the family Zosterophyllaceae, Parazosterophyllum timsiae gen. et sp. nov. and Gippslandites minutus gen. et sp. nov., are described from the upper Silurian–LowerExpand
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A fertile rhyniophytoid is discovered from the Lower Devonian of Guangxi, southwestern China, which is characterised by small size, dichotomous branchings and terminal sporangia. This plant isExpand
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Further Notes on Lower Devonian Plants from South Wales
  • A. Heard
  • Geology
  • Quarterly Journal of the Geological Society of London
  • 1939
In 1926 I recorded the occurrence of a Lower Devonian flora from the Senni Beds near Brecon, and described one new genus, Gosslingia, in detail. In 1931 a “thalloid-like” plant, Thallomia, from theExpand
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We report here the presence of an extensive flora from an early Lochkovian (Lower Devonian: ∼406 million years) locality in the Parana Basin (Brazil). The exceptional macrofossil assemblage includesExpand
Renalia hueberi, a new plant from the lower Devonian of Gaspé
Renalia hueberi is interpreted however as being evolved from Cooksonia -like plants, and exhibits a sporangial position most comparable to that of the rhyniophytes and a mode of dehiscence characteristic of zosterophylls. Expand
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Their overall morphological grade is closer to material collected from circum-northern Atlantic localities than from assemblages in Australia and Kazakhsta/nChina, which translates into floristic similarities between Gondwanan high latitudes and equatorial Laurussia rather than with low latitude, north-eastern Gondwana or with a low latitude Kazakhstan/ Xinjiang micro-palaeocontinent. Expand
New perspectives on Cooksonia from the Lower Devonian of the Welsh Borderland
It is concluded that spores of such simple morphology may have been produced by a variety of taxa and that ultrastructural studies are necessary to confirm this possibility. Expand
A new rhyniopsid with novel sporangium organization from the Lower Devonian of South Wales
Re-investigation of permineralized plants originally called Cooksonia sp. from the Lower Old Red Sandstone (Siegenian) of Gwent, S. Wales shows them to be rhyniopsids with simple isotomous branchingExpand
The lower Devonian flora of the Senni Beds of Monmouthshire and Breconshire
  • W. Croft, W. H. Lang
  • Biology
  • Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
  • 1942
New fossil localities, of which the most important is Llanover Quarry, are recorded from the Senni Beds of the Lower Old Red Sandstone of Monmouthshire and Breconshire, and a distinction of two subgenera within the genus Zosterophyllum is suggested. Expand