Results 251 to 260 of about 3,730,581 (317)

Tooth Ultrastructure of Late Triassic Haramiyidae

Journal of Dental Research, 1984
Six molars of Haramiyidae from the French lower Rhaetic were examined by scanning and transmission electron microscopy, and by electron diffraction. Typical polished wear facets were located on the tops and on the occlusal bases of cuspids. Enamel was found to have had a structural pattern defined as "pre-prismatic", consisting of a repetitive pinnate
R M, Frank, D, Sigogneau-Russell, J C, Voegel   +2 more
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MOLAR OCCLUSION IN LATE TRIASSIC MAMMALS

Biological Reviews, 1968
Summary1. A new genus and species of late Triassic mammal, Megazostrodon rudnerae, from Lesotho in southern Africa is described. The molars are similar to those of the British Eozostrodon parvus except that they are slightly larger and the upper molars have a large external cingulum supporting well‐developed cusps.2. Molar occlusion is discussed in two
A W, Crompton, F A, Jenkins
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Feeding specializations in Late Triassic fishes

2005
The ichthyofauna of the Zorzino Limestone represents an important proof of the richness and variety reached by bony fishes during the Norian and, at the same time, it testifies the beginning of the faunal transition which will be realized during the Jurassic.
C. Lombardo, A. Tintori
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Nonavian Feathers in a Late Triassic Archosaur

Science, 2000
Longisquama insignis was an unusual archosaur from the Late Triassic of central Asia. Along its dorsal axis Longisquama bore a series of paired integumentary appendages that resembled avian feathers in many details, especially in the anatomy of the basal region.
T D, Jones, J A, Ruben, L D, Martin, E N, Kurochkin, A, Feduccia, P F, Maderson, W J, Hillenius, N R, Geist, V, Alifanov   +8 more
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Late Permian to Late Triassic, Tethyan Paleoenvironments

1995
The development of giant, shallow, carbonate platforms characterizes the Late Murgabian paleoenvironment. Most of the reef buildups are located on the African—Arabian margin. The main terrigenous marine deposits are found on the northern margin of India and on northwest Australia.
Jean Marcoux, Aymon Baud
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Cyclic Change in Late Triassic Lacustrine Communities

Science, 1978
A new type of lake and shore assemblage has been found in the Late Triassic age rocks of North Carolina and Virginia (Dan River group). It includes abundant aquatic reptiles, fishes, at least seven orders of insects, crustaceans, and a diverse flora.
P E, Olsen, C L, Remington, B, Cornet, K S, Thomson   +3 more
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Late Triassic thalamid sponges from Nevada

Journal of Paleontology, 1992
A study of Upper Triassic (Norian) thalamid sponges (“sphinctozoans”) from the Pilot Mountains, Garfield Hills, and East Range, Nevada, reveals an abundance of calcified sponges of the suborder Porata Seilacher. Two new species, Polycystocoelia silberlingi n. sp. and Neoguadalupia? norica n.
Baba Senowbari-Daryan, George D. Stanley
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Preface: Late Permian–Early Triassic Earth

Global and Planetary Change, 2010
1. IntroductionThe Permian to Triassic interval was a time of major perturbationsin the Earth's system. The change began with the crisis at the end ofthe Guadalupian, followed by major devastation near the Permian–Triassic boundary (PTB), and continued with several severe eventsduring the Early to Middle Triassic (Erwin, 2006; Payne et al., 2004 ...
Ezat Heydari, Thomas C. Wynn, Zhong Qiang Chen   +2 more
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Late Permian to Early Triassic magnetostratigraphy

Earth and Planetary Science Letters, 1991
A Late Permian to Early Triassic magnetostratigraphic reference section is presented. The Lower Triassic part is based on results from marine limestone sections in South China published earlier [1,2]. Reliable new Permian data are added here which have been collected in the Nammal gorge (Salt Range, Northwest Pakistan) where marine sediments have been ...
Maja Haag, Friedrich Heller
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The Late Triassic Mass Extinction Event

2016
The Late Triassic extinction event is recognized as one of the five largest such events of the Phanerozoic and is now generally believed to have been caused by global warming and concomitant environmental changes triggered by emplacement of the Central Atlantic Magmatic Province.
Colin Barras, Richard J. Twitchett
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