Results 311 to 320 of about 39,068 (353)

A Lower Carboniferous xenacanthiform shark from Australia

Journal of Vertebrate Paleontology, 2011
ABSTRACT A new Early Carboniferous (Mississippian, mid-Visean) chondrichthyan, Reginaselache morrisi, n. g., n. sp., from non- or marginal marine sandy mudstones of the Tetrapod Unit of the mid-Visean (330 Ma = top Holkerian/basal Asbian) Ducabrook Formation, northwest of Springsure, central Queensland, is referred to the order Xenacanthiformes.
Susan Turner, Carole J. Burrow
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Kulm trilobites (Lower Carboniferous) from S-China

Paläontologische Zeitschrift, 2005
Some trilobite remains are described from the Lower Carboniferous/Mississippian (Tournaisian/Visean boundary) of S-China, representing two species:Liobole (Liobole) devuysti n. sp. andLiobole (Sulcubole) xiangzhouensis n. sp.Liobole is a typical member of the central European Kulm Facies and index fossil for the Erdbachian.
Gerhard Hahn, Renate Hahn
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Lower Carboniferous Reefs of Northern England

AAPG Bulletin, 1957
In this paper a general account is given of a peculiar facies in the Lower Carboniferous of Northern England, the origin of which has given rise to much controversy. This facies is most prominently displayed in the limestone hills named "reef knolls" by Tiddeman.
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The Lower Carboniferous Marine Transgression

1974
By this time the old Caledonian mountains were much reduced by erosion and the essential feature of the Lower Carboniferous, which corresponds broadly to the rock-group called the ‘Carboniferous Limestone’, is the gradual advance, or transgression, of the sea over the lower areas.
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LOWER CARBONIFEROUS ROCKS IN COUNTY WEXFORD

Quarterly Journal of the Geological Society of London, 1960
The Lower Carboniferous rocks of the Wexford syncline rest unconformably on the Bray Series. Basal conglomerates are followed by highly fossfliferous limestones and shales, with some dolomites, of mid- and upper Tournaisian age, the Old Red Sandstone and the Lower Limestone Shales being overlapped.
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The lower carboniferous rocks of ireland

Geological Journal, 1951
AbstractFollowing introductory notes on the historical aspect of the subject, this review of Irish Carboniferous Limestone and associated beds discusses the distribution of the principal lithological types in Ireland. The zonal stratigraphy is then reviewed throughout the island, opportunity being taken to incorporate certain unpublished results of ...
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LOWER CARBONIFEROUS PALAEOGEOGRAPHY OF THE BRITISH ISLES

Proceedings of the Yorkshire Geological Society, 1958
Summary Palaeogeography rests in a well-founded stratigraphy. Rigidly defined palaeontological zones are of very limited use in neritic rocks, and their criteria must be relaxed and adapted to changing fossil associations to meet the needs of wide-ranging regional studies: in particular, Vaughan’s scheme, though the most convenient, is ...
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British Dinantian (Lower Carboniferous) terebratulid brachiopods

1981
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Lower Carboniferous biota of Glencartholm, Eskdale, Dumfriesshire

Scottish Journal of Geology, 1983
Synopsis The unusual biota of the Glencartholm Volcanic Beds, Lower Carboniferous of Scotland is restudied in the first overall treatment since the turn of the century. Examination of the large collections now housed in the IGS Edinburgh and the Royal Scottish Museum afforded a complete list of the biota (some species never having been ...
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II.—The Lower Carboniferous Problem in Devonshire

Geological Magazine, 1905
What represents the Carboniferous Limestone in Devonshire, is a question that has often been asked, but has never yet been answered in a satisfactory manner. The question has recently been narrowed by the identification of the Coddon Hill Beds and the Posidonomya limestones with the shales, cherts, and limestones which overlie the mass of the ...
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