Results 161 to 170 of about 1,613 (196)
New specimens of Bunaia woodwardi Clarke, 1919 (Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha. [PDF]
R Soc Open SciLustri L +3 more
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Sedimentary Evolution of the Ordovician Basin in Central NingxiaNorth China [PDF]
An, Taixiang +2 more
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TREMADOCIAN STYLOPHORAN ECHINODERMS FROM THE TAEBAEKSAN BASIN, KOREA
Journal of Paleontology, 2006Abundant isolated elements of cornute and mitrate stylophorans were recovered from the upper Tremadocian Tumugol Formation in the Taebaeksan Basin, Korea. Cornute skeletal elements comprise a diverse assemblage of marginals and brachials of cothurnocystid affinities, suggesting the presence of no fewer than four different species.
Lee, Seung-Bae +2 more
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Tremadocian (Early Ordovician) graptolite biostratigraphy of China
Newsletters on Stratigraphy, 2004Based on a study of latest Tremadocian graptolites from Gulin of southern Sichuan and a re-examination of Tremadocian graptolite specimens previously collected from many other localities in South China, a new scheme of Tremadocian graptolite biozonation is proposed for the South China palaeoplate, to include seven zones.
Yuandong Zhang +2 more
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Tremadocian (Ordovician) graptolite diversification events in China
Alcheringa: An Australasian Journal of Palaeontology, 2001Study of the taxonomy, evolution and distribution of Tremadoc graptolites and their sequences in China and other representative sections around the world indicates that five graptolite diversity events can be recognised during the Tremadoc interval. The taxonomic validity of the suborder Graptodendroidina is advocated.
Wang Xiaofeng, Wang Chuanshang
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Find of Tremadocian ostracodes in cherts of Kazakhstan
Paleontological Journal, 2010First late Tremadocian (Early Ordovician) ostracodes were found in cherts of the Burubaital Formation near the “Burultas” deposit in southern Kazakhstan. The preservation of carbonate ostracode shellshells in siliceous environment is discussed. The monotypic ostracode assemblage includes the newly described form, Burultalina nikitinae gen. et sp. nov.
L. M. Melnikova +2 more
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An Early Ordovician (late Tremadocian) bivalve fauna from Iran
Geological Journal, 2019A small bivalve fauna is described from the late Tremadocian of Iran, adding to the very few localities in the world where bivalves of this age are known. In addition to indeterminate praenuculids, the fauna includes the praenuculid Pensarnia and the pteriomorphian genus Glyptarca.
John C.W. Cope, Mansoureh Ghobadi Pour
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Tremadocian acritarchs from northwestern Argentina
Review of Palaeobotany and Palynology, 1997Abstract A Tremadocian acritarch assemblage is described from the Santa Rosita Formation, Cordillera Oriental, Salta Province, northwestern Argentina. The microplankton corresponds to trilobite-bearing strata assigned to the lower to upper Tremadocian from the middle part of the Santa Rosita Formation.
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Revision of the March Formation (Tremadocian) in Southeastern Ontario
Canadian Journal of Earth Sciences, 1973Reference sections are proposed for the revised March Formation (Tremadocian) along the MacDonald–Cartier Freeway a few miles west of Brockville, Ontario. The sequence of the March Formation delineated by these sections yields nearly a complete stratigraphic succession for this formation in southeastern Ontario.
Ivor J. Bond, Robert G. Greggs
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