Results 191 to 200 of about 6,336 (243)

A new lungfish (Ceratodontoidei, Dipnoi) from the Early Jurassic of Chongqing, China. [PDF]

Sci Rep
Luo B, Xu GH, Ren TC, Ma XY, Wang QD, Qiao T, Tan FT, Tan Y, Wei GB.   +8 more
europepmc   +1 more source

Composition and paleoecology of the mid-Jurassic bony fish assemblage of the Vaches Noires cliffs (Normandy, France). [PDF]

PLoS One
Beaufils S, Vullo R, Gendry D, Picot L, Cavin L.   +4 more
europepmc   +1 more source

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Late Jurassic salamanders from northern China

Nature, 2001
With 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
openaire   +2 more sources

Late Jurassic paleoclimate of Central Africa

Palaeogeography, Palaeoclimatology, Palaeoecology, 2011
Abstract 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, Neil J. Tabor, Louis L. Jacobs   +2 more
openaire   +1 more source

Late Jurassic magnetic polarity sequence

Earth and Planetary Science Letters, 1975
Abstract 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
openaire   +1 more source

A Late Jurassic Mafic Pluton in Newfoundland

Canadian Journal of Earth Sciences, 1974
A small alkaline ultramafic intrusion in central Newfoundland is dated as 135 ± 8 m.y. old and 139 ± 9 m.y. old by the K–Ar method on biotite. This is the first known Mesozoic pluton (aside from dikes) in Newfoundland. The occurrence, composition and age of the pluton and associated igneous rocks is similiar to, and perhaps related in origin to ...
J. Helwig, J. Aronson, D. S. Day
openaire   +1 more source

Late Jurassic Sauropods in Chilean Patagonia

Ameghiniana, 2015
Abstract. 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, Novas, Fernando E., Suárez, Manuel, Cruz, Rita de la, Isasi, Marcelo, Rubilar Rogers, David, Vargas, Alexander O.   +6 more
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Diversity and biogeography patterns of Late Jurassic neoselachians (Chondrichthyes: Elasmobranchii)

Geological Society, London, Special Publications, 2008
Abstract The regional diversity and biogeographic patterns of Late Jurassic neoselachians at genus level in Europe were analysed based on samples and an extensive literature survey of about 40 localities ranging from the Oxfordian to Tithonian.
Kriwet, J, Klug, S
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A Late Jurassic Digging Mammal and Early Mammalian Diversification

Science, 2005
A 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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