نتایج جستجو برای: tournaisian
تعداد نتایج: 98 فیلتر نتایج به سال:
The genus Kassinella was established by Keller (1960: 90) for extinct Lower Carboniferous (Tournaisian) corals from Kazakhstan. The name, however, is preoccupied by the senior homonym Kassinella Borissiak (1956: 50) (Brachiopoda), equally honouring N. G. Kassin, famous geologist and explorer of Kazakhstan. To resolve the homonymy, in accordance with the International Code of Zoological Nomencla...
Microgastropod fauna from the Upper Devonian Cephalopod Bed and overlying Lower Tournaisian strata of the original reference section of the Shishtu Formation have been examined. Twenty genera and one unknown genus have been identified. The original aragonite shells have been replaced either by pyrite or fluorapatite
The Devonian–Carboniferous transition was marked by a series of perturbations in the geological and biological evolution. palaeontological data from Transcaucasia allowed bryozoan diversity dynamics on northern Gondwanan margin (southern periphery Palaeo-Tethys Ocean) to be documented at this transition. Taxonomic ranges 43 species, 26 genera, 19 families, 4 orders were analysed reveal changes ...
microgastropod fauna from the upper devonian cephalopod bed and overlying lower tournaisian strata of the original reference section of the shishtu formation have been examined. twenty genera and one unknown genus have been identified. the original aragonite shells have been replaced either by pyrite or fluorapatite
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