Results 251 to 260 of about 46,306 (289)

The upper Permian reefs in West Hubei, China

Facies, 1982
Upper Permian reefs are widely distributed in the Lichuan district, West Hubei, The reefs occur within the Changxing Formation (zone withPalaeofusulina). Main frame-building organisms are sphinctozoan calcisponges, which together with various binding organisms (lamellar blue-green algae andTubiphytes) from the organic framework of the reefs.
Fan Jiasong, Ma Xing, Zhang Yinben, Zhang Wei   +3 more
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Upper Permian Sediments in Southeastern Permian Basin, Texas

1968
Throughout most of late Permian time the southeastern Permian Basin was part of a shallow barred lagoon located in an area of high evaporation and low rainfall. Refluxion to the open sea farther west was slowed by the intervening Capitan barrier reef during Guadalupian time, but free surface influxion of sea water occurred.
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Radiosensitivity of subterranean bacteria in the Hungarian upper permian siltstone formation

Journal of Environmental Radioactivity, 2002
The main purpose of this work was to study the radioresistance of subterranean aerobic and anaerobic isolates from the Hungarian Upper Permian Siltstone (Aleurolite) Formation, in order to assess the safety of potential sites of future underground repositories for nuclear waste. A total of 93 isolates were studied.
Gyöngyi, Farkas, L G, Gazsó, G, Diósi
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Bryozoa of the Upper Permian Zechstein Formation of Germany

Senckenbergiana Lethaea, 2001
The investigated bryozoan fauna of the Upper Permian Zechstein Formation includes 17 species of 9 genera, belonging mainly to the fenestellids and trepostomids and one species belonging to the tubuliporids,Corynotrypa voigtiana (King 1850). Three new species are described (Dyscritella microstoma sp. nov.,Ulrichotrypella incrustata sp.
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Pareiasaurs from the Upper Permian of north China

Canadian Journal of Earth Sciences, 1989
Fossils from the lower part of the Shihtienfeng Formation, Upper Permian of north China, include the type specimen of a new genus and species of pareiasaur and less complete materials identified as Shansisaurus sp. and Pareiasauridae gen. et sp. indet.Based on the distribution of pareiasaurian fossils in the Upper Permian of north China, the upper ...
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Plesiosaur ancestors from the upper permian of Madagascar

Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1981
Abstract Numerus well preserved fossils from the Upper Permian of Madagascar are structurally intermediate between primitive diapsid reptiles and nothosaurs and plesiosaurs. Claudiosaurus germaini (gen.nov., sp.nov.) is similar in its basic anatomy to eosuchian reptiles such as Thadeosaurus colcanapi (gen.nov., sp.nov.), but the ...
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Brachiopod assemblages from the Upper Permian and Permian–Triassic boundary beds, South China

Canadian Journal of Earth Sciences, 1980
Uppermost Permian (Changhsingian) brachiopods are abundant and diverse in South China; thus far, 60 genera and 130 species have been described from the Changhsing Formation. Two distinctive brachiopod faunas can readily be identified from a single Changhsingian zone, the Peltichia zigzag–Paryphella sulcatifera Assemblage Zone.
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THE INTERREGIONAL CORRELATION OF THE TATARIAN AND THE PROBLEM OF THE PERMIAN UPPER BOUNDARY

International Geology Review, 1992
As the Permian was initially established on the Russian Platform, the sequence of Permian stages with type sections on the platform is traditionally considered as the standard and has served to define the Permian. Consequently, the upper boundary of the Tatarian on the Russian Platform should, by definition, be considered as the upper boundary of the ...
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Sandstones and Channels in Upper Pennsylvanian and Lower Permian in Kansas

AAPG Bulletin, 1956
During recent field work in Kansas, many channel sandstones were discovered in the upper Pennsylvanian and lower Permian rocks. The new channels originated in the Willard, Pierson Point, Langdon, Pony Creek, West Branch, and Hamlin shales and the Caneyville limestone. Some of them are as much as 110 feet deep.
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Upper Permian (Tatarian) Brachiopods from New Zealand

New Zealand Journal of Geology and Geophysics, 1967
Abstract Fifteen species of Brachiopoda are described from limestones of the Stephens Formation (lower Tatarian) and from the Wairaki Breccia (upper Tatarian) of New Zealand. The Stephens fauna represents the youngest known cold‐water fauna of the Permian Gondwana realm.
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