Results 291 to 300 of about 72,611 (345)
Reappraisal of the extinct barbelthroat shark †Bavariscyllium and the nebulous origin of carcharhiniform galeomorphs. [PDF]
Commun BiolStumpf S +10 more
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Petrogenesis and tectonic significance of the Baipu granite porphyry in the Huangtian uranium deposit, northeastern Guangdong, South China. [PDF]
PLoS OneRuan K, Wu J, Long Z, Min Z.
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A Late Jurassic Digging Mammal and Early Mammalian Diversification
Science, 2005A fossil mammal from the Late Jurassic Morrison Formation, Colorado, has highly specialized teeth similar to those of xenarthran and tubulidentate placental mammals and different from the generalized insectivorous or omnivorous dentitions of other Jurassic mammals.
Zhe-Xi, Luo, John R, Wible
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Late Jurassic salamanders from northern China
Nature, 2001With ten extant families, salamanders (urodeles) are one of the three major groups of modern amphibians (lissamphibians). Extant salamanders are often used as a model system to assess fundamental issues of developmental, morphological and biogeographical evolution.
K Q, Gao, N H, Shubin
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Late Jurassic magnetic polarity sequence
Earth and Planetary Science Letters, 1975Abstract Polarity reversal sequences have been observed in the Brushy Basin Member of the Morrison Formation (Upper Jurassic, Kimmeridgian-Tithonian age) at two sites in western Colorado separated by 80 km. The two polarity reversal sequences display a good correlation of relative lengths and number of polarity intervals and thus may provide a ...
M.B. Steiner, C.E. Helsley
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Late Jurassic paleoclimate of Central Africa
Palaeogeography, Palaeoclimatology, Palaeoecology, 2011Abstract Paleopedology and geochemical analysis of Upper Jurassic deposits in the Stanleyville Group of Central Africa indicate harsh Late Jurassic paleoclimates in the interior of Gondwana. Subsurface samples collected from the Samba borehole near the center of the Congo Basin show only weak morphological evidence of pedogenesis, but are ...
Timothy S. Myers +2 more
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Modelling Late Jurassic Milankovitch climate variations
Geological Society, London, Special Publications, 1995Abstract Although largely circumstantial in character, evidence for orbitally-forced (Milankovitch) climate changes in Jurassic microrhythmic successions, such as those of the Lias and Kimmeridgian, is becoming more persuasive. We present here the results of experiments, using a general circulation model, testing ways in which ...
P. J. Valdes +2 more
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Late Jurassic Sauropods in Chilean Patagonia
Ameghiniana, 2015Abstract. A description is provided of the first sauropod remains (i.e., isolated vertebrae and appendicular bones) from the Late Jurassic of Aysen, in Chilean Patagonia (Toqui Formation, late Tithonian). Although the bones found are fragmentary, they still allow the recognition of an unsuspected sauropod diversity for this period in South America. The
Salgado, Leonardo +6 more
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Indian Ocean sediment distribution since the Late Jurassic
Marine Geology, 1978Cores obtained by deep sea drilling in the Indian Ocean provide a sedimentary record from which are deduced changing patterns of sedimentation through the Late Mesozoic and Cenozoic. Comparisons between: (1) empirical subsidence curves and sediment sequences at individual sites; and (2) paleobathymetric reconstruction maps and past sediment ...
Robert B. Kidd, Thomas A. Davies
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