نتایج جستجو برای: upper devonian

تعداد نتایج: 206790  

Journal: :Bulletin of the British Museum (Natural History) Geology 1965

Journal: :Doklady of the National Academy of Sciences of Belarus 2020

2014
Jason D. Pardo Adam K. Huttenlocker Bryan J. Small Peter Wilf

Complete, exceptionally-preserved skulls of the Permian lungfish Persephonichthys chthonica gen. et sp. nov. are described. Persephonichthys chthonica is unique among post-Devonian lungfishes in preserving portions of the neurocranium, permitting description of the braincase of a stem-ceratodontiform for the first time. The completeness of P. chthonica permits robust phylogenetic analysis of th...

Journal: :Solid Earth 2021

Abstract. The present study of field, petrological, exploration well, and seismic data describes backward-dipping duplexes comprised phyllitic coal bedding-parallel décollements thrusts localized along lithological transitions in tectonically thickened Lower Devonian to lowermost Upper Devonian; uppermost Devonian–Mississippian; Pennsylvanian–lowermost Permian sedimentary strata the Wood Bay an...

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