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Wenlock plant spores and tetrads from County Mayo, Ireland

Published online by Cambridge University Press:  01 May 2009

David G. Smith*
Affiliation:
Department of Geology, Trinity College, Dublin 2, Ireland

Summary

A rock sample from the Lettergesh Formation, most probably from the centrifugus Zone of the early Wenlock on graptolite evidence, has yielded microfossils including spores, most of which occur in tetrads. The spores are described and illustrated and are compared with Ambitisporites avitus Hoffmeister.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1975

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References

Banks, H. P. 1972. The stratigraphic occurrence of early land plants. Palaeontology 15, 365–77.Google Scholar
Chaloner, W. G. 1970. The rise of the first land plants. Biol. Rev. 45, 353–77.CrossRefGoogle Scholar
Doran, R. J. P. 1974. The Silurian rocks of the southern part of the Slieve Phelim inlier, Co. Tipperary. Proc. R. Irish Acad. B 74 (15), 193202.Google Scholar
Edwards, D. & Richardson, J. B. 1974. Lower Devonian (Dittonian) plants from the Welsh Borderland. Palaeontology 17, 311–24.Google Scholar
Gray, J. & Boucot, A. J. 1971. Early Silurian spore tetrads from New York: earliest New World evidence for vascular plants? Science 173, 918–21.CrossRefGoogle ScholarPubMed
Gray, J., Laufeld, S. & Boucot, A. J. 1974. Silurian trilete spores and spore tetrads from Gotland: their implications for land plant evolution. Science 185, 260–3.CrossRefGoogle ScholarPubMed
Hoffmeister, W. S. 1959. Lower Silurian plant spores from Libya. Micropaleontology 5, 331–4.CrossRefGoogle Scholar
Laird, M. G. & McKerrow, W. S. 1970. The Wenlock sediments of north-west Galway, Ireland. Geol. Mag. 107, 297317.Google Scholar
Piper, D. J. W. 1972. Sedimentary environments and palaeogeography of the late Llandovery and earliest Wenlock of North Connemara, Ireland. J. geol. Soc. Lond. 128, 3351.CrossRefGoogle Scholar
Richardson, J. B. & Ioannides, N. 1973. Silurian palynomorphs from the Tannezuft and Acacus Formations, Tripolitania, North Africa. Micropaleontology 19, 257307.CrossRefGoogle Scholar
Richardson, J. B. & Lister, T. R. 1969. Upper Silurian and Lower Devonian spore assemblages from the Welsh Borderland and South Wales. Palaeontology 12, 201–52.Google Scholar
Rickards, R. B. 1973. On some highest Llandovery redbeds and graptolite assemblages in Britain and Eire. Geol. Mag. 110, 70–2.CrossRefGoogle Scholar
Schopf, J. M., Mencher, E., Boucot, A. J. & Andrews, H. N. 1966. Erect plants in the early Silurian of Maine. Prof Pap. U.S. geol. Surv. 550-D, 6975.Google Scholar