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An Approach to the Carboniferous-Early Permian Stratigraphy, Paleontology, Paleogeography And Paleoclimatology of the Calingasta-Uspallata Subbasin (Western Argentina) and Tepuel-Genoa Basin (Patagonia), Argentina: A Fieldguide
(International Comission on Stratigraphy. International Union of Geological Sciences, 2009-06)
The purpose of this contribution is to present to all Upper Paleozoic workers an adaptation of the fieldguide used in the “Second International Symposium and Field Workshop on the Carboniferous-Early Permian Stratigraphy, ...
Late Pennsylvanian and Early Cisuralian palynofloras from the Rajmahal Basin, eastern India, and their chronological significance
(Taylor & Francis Ltd, 2018-10-15)
This work documents for the first time a palynological assemblage in the Rajmahal Basin, tentatively considered probable youngest Late Pennsylvanian assemblage, which was hitherto considered early Permian. The palynocomposition ...
Petrographic approach to the study of organic microfossils from the Irati Subgroup (Permian, Parana Basin, Brazil)
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
Early diagenetic chert, infrequently exploited in Phanerozoic micropaleontology, was examined for organic-walled microfossils in petrographic thin sections of silicified dolostones from diverse levels and localities of the ...
First records of Geinitziidae (Insecta: Grylloblattida) from the Upper Triassic of Argentina (Mendoza)
(Taylor & Francis, 2016-08)
The salle Grylloblattidae or Grylloblattodea order
(extant representatives are referred to as ‘living fossils’
and have relictual distributions) is one of the least diverse extant insect groups (with 29 species and five ...
Tooth replacement in the non-mammalian cynodont Cynosaurus suppostus (Therapsida) from the late Permian of South Africa
(Society of Vertebrate Paleontology, 2022-01)
Five specimens of the late Permian cynodont Cynosaurus suppostus, inferred to represent an ontogenetic growth series, were imaged using X-ray microtomography in order to determine the pattern of tooth replacement for the ...
Mass extinctions drove increased global faunal cosmopolitanism on the supercontinent Pangaea
(Nature Publishing Group, 2017-12)
Mass extinctions have profoundly impacted the evolution of life through not only reducing taxonomic diversity but also reshaping ecosystems and biogeographic patterns. In particular, they are considered to have driven ...
Using conodont elements to distinguish permian-triassic boundary disconformity near haftad gholleh, central iran
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2013)
The present study focuses on stratigraphy of the Permo-Triassic boundary in the Haftad Gholleh in the east Arak and north of the Mahallat, which is located in central Iran. This boundary is an erosional unconformity or ...
New Permian fauna from tropical Gondwana
(Nature Publishing Group, 2015-11)
Terrestrial vertebrates are first known to colonize high-latitude regions during the middle Permian (Guadalupian) about 270 million years ago, following the Pennsylvanian Gondwanan continental glaciation. However, despite ...
30 million years of Permian volcanism recorded in the Choiyoi igneous province (W Argentina) and their source for younger ash fall deposits in the Parana Basin: SHRIMP U-Pb zircon geochronology evidence
(ELSEVIER SCIENCE BV, 2011)
We present four SHRIMP U-Pb zircon ages for the Choiyoi igneous province from the San Rafael Block, central-western Argentina. Dated samples come from the Yacimiento Los Reyunos Formation (281.4 +/- 2.5 Ma) of the Cochico ...