Results 131 to 140 of about 792 (171)

Ichthyosauria

2021
P Martin Sander
exaly   +2 more sources

Ichthyosauria from the Upper Lias of Strawberry Bank, England [PDF]

open access: yesPalaeontology, 2011
Abstract:  Eight remarkably preserved specimens of ichthyosaurs from the lower Toarcian (Lower Jurassic) of Strawberry Bank (Ilminster, Somerset, England) are described fully for the first time. Whereas previously these ichthyosaurs were assigned to one species, Stenopterygius hauffianus, our study shows there are two, Stenopterygius triscissus and ...
Michael J Benton
exaly   +3 more sources

Anatomy and phylogenetic relationships of Temnodontosaurus zetlandicus (Reptilia: Ichthyosauria)

Zoological Journal of the Linnean Society, 2022
Abstract Parvipelvia is a major clade of ichthyosaurians that diversified during the Triassic-Jurassic transition. The interrelationships of early parvipelvians remain unclear and many genera are loosely diagnosed, such as Temnodontosaurus, an ecologically important genus from the Early Jurassic of Western Europe.
Antoine Laboury   +4 more
openaire   +2 more sources

The first definite record of a Valanginian ichthyosaur and its implications on the evolution of post-Liassic Ichthyosauria [PDF]

open access: yesCretaceous Research, 2011
A complete ichthyosaur rostrum, with 124 associated teeth, was recently discovered in Laux-Montaux locality, department of Drôme, southeastern France. The associated belemnites and ammonites indicate a late Valanginian age (Neocomites peregrinus Zone, Olcostephanus nicklesi Subzone) for this fossil, which consequently represents the first diagnostic ...
Valentin Fischer
exaly   +2 more sources

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 ...
openaire   +1 more source

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 ...
openaire   +1 more source

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 ...
openaire   +1 more source

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
openaire   +1 more source

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