Permian
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Recent papers in Permian
Premise of research. Extant Isoetes species, which all develop small pseudoherbaceous habits, are the only living remnants of the once diverse clade of rhizomorphic lycopsids, which included trees that grew to towering heights of 50 m.... more
Fossil floras have been recovered from a unique deposit of early Permian age in North-Central Texas. The site, Kola Switch, preserves three distinct floras in different lithofacies, in a succession from a single outcrop. The sedimentary... more
Botrychiopsis has been considered an important floristic element of Westphalian/Artinskian associations of the Paraná Basin. The occurrence of Botrychiopsis in roof-shales of the Rio Bonito Formation in Southern Paraná Basin (Quitéria... more
Increased energy trade has important economic and strategic significance for the United States and Mexico. Mexico’s energy-market reforms that opened access and improved natural gas trade between American producers and Mexican consumers... more
In tetrapod ichnology, the morphologic quality of tracks is widely termed preservation, including both formational and postformational processes; this study follows this interpretation. The term undertrack is generally referred to... more
In the Upper Permian continental to marginal-marine succession of the Southern Alps (Dolomites, north Italy), the ichnological record consists of diverse vertebrate footprints and non-diverse invertebrate trace fossils, mainly occurring... more
Коллективная монография (Белавин А.М, Игнатьева О.В, Оятева Е.И.), в которой главы 1 и 2 написаны Е.И.Оятевой
The Pobei mafic-ultramafic complex in northwestern China comprises magmatic Cu-Ni sulfide ore deposits coexisting with Fe-Ti oxide deposits. The Poshi, Poyi, and Podong ultramafic intrusions host the Cu-Ni ore. The ultramafic intrusions... more
Terrestrial floras underwent important changes during the Lopingian (late Permian), Early Triassic, and Middle Triassic, i.e., before, during, and after the end-Permian mass extinction. An accurate account of these developments requires... more
The most severe mass extinction among animals took place in the latest Permian (ca. 252 million years ago). Due to scarce and impoverished fossil floras from the earliest Triassic, the common perception has been that land plants likewise... more
This paper is a review of recent stratigraphical, biogeographical, palaeoclimatical, palaeofacial and palaeomagnetical data and represents a basis for paleogeographical and geodynamical interpretations. The geological development and... more
... 119017, Russia 3 3 Institute of Geology and Geophysics, Chinese Academy of Sciences, PO Box 9825, Beijing 100029, China 4 4 Institut für Geowissenschaften, Universität Mainz, 55099 Mainz, Germany 5 5 Institute of Geology and Mineral... more
This paper synthetizes the knowledge of the Tubarão depositional sequence (Rio Bonito and Palermo formations) and associated trace fossils from a small area.
Ein Massenvorkommen des syncariden Krebses Uronectes fimbriatus im Rotliegend von Pfeffelbach im Saar-Nahe-Becken wird vorgestellt. Die Fossilassoziation wird aufgelistet und die paläoökologische Situation kurz skizziert. Die große Masse... more