Results 101 to 110 of about 197 (135)

On the shoulder girdle in ichthyosauria and sauropterygia

Proceedings of the Royal Society of London, 1893
Abstract In a paper recently communicated to the Royal Society by Pro­fessor H. G. Seeley,* in which is discussed “The Nature of the Shoulder Girdle and Clavicular Arch in Sauropterygia,” the author challenges the validity of statements relating to this girdle made by me at the Anniversary Meeting of the Geological Society of London ...
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Ichthyosauria: their diversity, distribution, and phylogeny

Paläontologische Zeitschrift, 2000
The Ichthyosauria is the group of Mesozoic marine reptiles that was most highly adapted to the aquatic environment. The first ichthyosaurs from the upper Lower Triassic (Spathian) already show a suite of unique characters (very large eyes, elongate snout, deeply amphicoelous vertebrae, limb modified to fins) correlated with a fully aquatic existence ...
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Taphonomy and paleoecology of Shonisaurus popularis (Reptilia: Ichthyosauria)

PALAIOS, 1992
Remains of the ichthyosaur Shonisaurus popularis are sufficiently abundant and well preserved in the Upper Triassic Luning Formation of Nevada to allow paleobiologic inferences to be drawn from taphonomic data. In Berlin-Ichthyosaur State Park, Shonisaurus popularis fossils define both a scattered-element taphofacies and an articulated-skeleton ...
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An Oxfordian Ichthyosauria (Reptilia) From Viñales, Western Cuba: Paleobiogeographic Significance

Journal of Vertebrate Paleontology, 2000
FIGURE 1. Map showing locaties near Vinales (Western Cuba) where Jurassic marine reptiles were found (simplified after Iturralde-Vinent and Norell, 1996). Black strips: main outcrops of the middle–late Oxfordian Jagua Formation. 1, ‘‘near Vinales’’; 2, Puerta del Ancon; 3, Laguna de Piedra; 4, Vinales town. Western Cuba has yielded significant material
Marta Susana Fernández
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REDESCRIPTION AND PHYLOGENETIC POSITION OF CAYPULLISAURUS (ICHTHYOSAURIA: OPHTHALMOSAURIDAE)

Journal of Paleontology, 2007
Abstract The ophthalmosaurid Caypullisaurus from the Late Jurassic–Early Cretaceous of the Neuquen Basin, Argentina, is redescribed based on new information from recent discoveries. Cladistic analysis of Caypullisaurus, based on previous ichthyopterygian data sets and using NONA, yielded two most parsimonious trees. Two clades are recognized within the
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Ontogeny and reproductive paleobiology in the Mesozoic marine reptile clade Ichthyosauria

2023
Ichthyosaurs were viviparous marine reptiles that occupied many consumer niches in the marine ecosystems of the Mesozoic. Their viviparous reproductive strategy lends us the opportunity to study their prenatal development in great detail and lets us assess their birthing strategies.
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New information on the forefin of Utatsusaurus hataii (Ichthyosauria)

Journal of Paleontology, 1997
Utatsusaurus hataii, an Early Triassic ichthyosaur from Japan, is represented by exceptionally well preserved materials but is poorly known because of incomplete preparation. Further preparation of the holotype and one of the paratype specimens has revealed nearly complete forefins that are pentadactyl, with no more than five phalanges in any of the ...
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Evolutionary Origins of Viviparity in the Reptilia. II. Serpentes, Amphisbaenia, and Ichthyosauria

Amphibia-Reptilia, 1985
AbstractSuperimposition of reproductive mode data from the literature over phylogenetic classification systems reveals that viviparity (live-bearing reproduction) has evolved on at least 35 independent occasions among the Serpentes, once in the Amphisbaenia, and once in the Ichthyosauria.
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The forefin of Chensaurus chaoxianensis (Ichthyosauria) shows delayed mesopodial ossification

Journal of Paleontology, 1998
The hitherto poorly known forefin of Chensaurus chaoxianensis (Ichthyosauria) from the Lower Triassic (Spathian) is redescribed on the basis of the holotype and two new specimens. The humerus resembles that of Utatsusaurus hataii but is distinctive in having an emarginated anterior margin.
Ryosuke Motani, Hailu You
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Stenopterygius (Reptilia, Ichthyosauria) in Italian museums: morphometric and palaeoecological considerations

2023
Stenopterygius is a genus of parvipelvian ichthyosaurs whose fossil remains are mostly found in Lower Jurassic strata of the Württemberg area, Germany. Large amounts of complete, exquisitely preserved specimens of Stenopterygius have been recovered from the famous locality of Holzmaden (Württemberg) and sold to museum collections throughout Europe ...
Nobile Francesco, Collareta Alberto, Merella Marco, Peri Emanuele, Aringhieri Giacomo, Bianucci Giovanni   +5 more
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