Journal ArticleDOI
Exceptional preservation in Lower Devonian coalified fossils from the Welsh Borderland: a new genus based on reniform sporangia lacking thickened borders
TLDR
Reniform sporangia recovered from Lower Old Red Sandstone strata of Devonian age (micrornatus-newportensis Spore Biozone: lower Gedinnian lower Lochkovian) on North Brown Clee Hill in the Welsh Borderland are placed in Resilitheca salopensis gen. et sp.About:
This article is published in Botanical Journal of the Linnean Society.The article was published on 1995-03-01. It has received 35 citations till now. The article focuses on the topics: Renalia & Sporangium.read more
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Journal ArticleDOI
Cryptospores and cryptophytes reveal hidden diversity in early land floras
TL;DR: Cryptophytes encompass a pool of diversity from which modern bryophytes and vascular plants emerged, but were competitively replaced by early tracheophytes, and the long-held consensus that tetrads were the archetypal condition in land plants is challenged.
BookDOI
Evolution and diversification of land plants
Kunio Iwatsuki,Peter H. Raven +1 more
TL;DR: Charting diversity in early land plants morphological diversity and evolution of vegetative organs in pteridophytes RNA editing in land plants phylogenetic reconstruction of some conifer families evolutionary biology of flowers fossil history of magnoliid angiosperms molecular phylogenic relationships among angios perms.
Journal ArticleDOI
New insights into early land ecosystems: a glimpse of a lilliputian world
TL;DR: The earliest body fossils of unequivocal terrestrial arthropods isolated from the same locality as the Přidoli plants suggest that the decomposer/microherbivore/predator soil and litter communities found in the Lower and Middle Devonian extend back at least into the Silurian.
Journal ArticleDOI
Silurian and Lower Devonian plant assemblages from the Anglo‐Welsh Basin: a palaeobotanical and palynological synthesis
Dianne Edwards,J. B. Richardson +1 more
TL;DR: A comprehensive survey of plant assemblages from Upper Silurian (Gorstian-Přidoli) and Lower Devonian (Lochkovian-Pragian) localities in South Wales and the Welsh Borderland is presented, together with some comments on recent improvements in dating and correlation as discussed by the authors.
Journal ArticleDOI
Permanent dyads in sporangia and spore masses from the Lower Devonian of the Welsh Borderland
TL;DR: The findings suggest that cryptospore permanent dyads were produced by rhyniophytoid plants of small stature, and the production of dyads by a plant with a bifurcating sporophytic axis is evidence against affinity with extant bryophytes.
References
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Journal ArticleDOI
A vascular conducting strand in the early land plant Cooksonia
TL;DR: Tubes with differentially thickened walls typical of tracheary elements found in the central region of axes of Lower Devonian unequivocal C. pertoni are reported, vindicating Lang's belief that Cooksonia was a vascular plant.
Journal ArticleDOI
The processes of anther dehiscence and pollen dispersal
TL;DR: The transfer of pollenkitt from the tapetum to the locule appears to be due to capillary forces in the locules after the continuous expansion of the pollen, rather than to active flow or to direct attraction by the pollen grains.
Journal ArticleDOI
Time relationships of sporopollenin synthesis associated with tapetum and microspores in Lilium.
TL;DR: The development of the sporopollenin orbicules (Ubisch bodies) on the tapetal cells of Lilium begins while the spores are still enclosed in the meiotic tetrads, and it is improbable that the carotenoids produced in the final phase of metabolic activity in the Tapetum can be sporopollin precursors.