Results 231 to 240 of about 47,008 (268)
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Enigmatic ichnites in the middle triassic of Southern Spain
Ichnos, 1999In southern Spain, within the Chiclana de Segura Formation of red detrital fades, enigmatic structures were found whose origins are discussed here. Each structure is composed of the union of elongated traces, two laterals and a shorter central one. All are concave epireliefs at the top of a sandstone bed whose age is assumed to be Ladinian (Triassic ...
G. R. Demathieu +2 more
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A Fossil Reptile Embryo from the Middle Triassic of the Alps
Science, 1988The first nothosaur ( Neusticosaurus sp.) embryo, one of the very few fossil embryos known, provides a rare glimpse at reproduction in extinct reptiles. The specimen from the southern Alpine Middle Triassic (about 230 million years ago) was recognized as an embryo in comparison with an exceptionally large and well ...
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LITHOFACIES DISTRIBUTION OF THE PERMIAN‐TRIASSIC ROCKS IN THE MIDDLE EAST
Journal of Petroleum Geology, 1982The lithofacies distribution of the Permian‐Triassic sequence across the Middle East region shows a great diversity of depositional sedimentary facies laterally as well as vertically. During Permian‐Middle Triassic time, a clastic‐carbonate shelf facies characterizes most of the Middle East region.
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A terrestrial vegetation turnover in the middle of the Early Triassic
Global and Planetary Change, 2013Abstract Land–plant productivity was greatly reduced after the end-Permian mass extinction, causing a pronounced “coal gap” worldwide during the Early Triassic. Newly obtained organic geochemistry data from the Chaohu area, south China, indicated an abrupt and profound terrestrial vegetation change over the middle part of the Early Triassic Smithian ...
Ryosuke Saito +5 more
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The Asteroidea (Echinodermata) of the Muschelkalk (Middle Triassic of Germany)
Paläontologische Zeitschrift, 2003Trichasteropsis Eck, from the Muschelkalk of Germany is the only Triassic asteroid known from more than fragmentary material. Most specimens representT. weissmanni (Munster) whereasT. senfti ECK,T. bielertorum n. sp., andBerckhemeraster charistikos n. gen. et n. sp., are each known from few individuals.
Daniel B. Blake, Hans Hagdorn
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On the System and Phylogeny of the Beyrichitidae (Ammonoidea, Middle Triassic)
Paleontological Journal, 2021The history of the establishment of the family Beyrichitidae (Ammonoidea) and the opinions of various authors on its systematics are discussed. The morphological characteristics, composition, and distribution of beyrichitids are discussed; the family status of this group of Middle Triassic ammonoids is substantiated.
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Spectral Analysis of the Middle Triassic Latemar Limestone
SEPM Journal of Sedimentary Research, 1991ABSTRACT The Middle Triassic Latemar Limestone in the Dolomites region, northern Italy, consists of hundreds of vertically stacked, meter scale, platform carbonate cycles. Each cycle is composed of a shallow marine subtidal carbonate unit with a thin (centimeter scale) vadose diagenetic dolomite cap.
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Middle Triassic of the Belski Dol quarry
2007The succession in Belski Dol quarry illustrates the evolution of a sedimentary environment from reef and platform margin, through platform slope to basin, and back to shallow platform. During the Anisian, carbonate platform sedimentation existed in the area.
Halamić, Josip, Grgasović, Tonći
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