Results 21 to 30 of about 136 (64)

The genus Arthropterygius Maxwell (Ichthyosauria: Ophthalmosauridae) in the Late Jurassic of the Neuquén Basin, Argentina

open access: yes, 2012
Recent discovery of a skull and forefin of an ophthalmosaurid ichthyosaur from the Tithonian (Late Jurassic) of the Neuquen Basin, Argentina, shows a peculiar morphology of the braincase and forefin, including the opening for internal carotids situated ...
M. Fernández, E. Maxwell
semanticscholar   +1 more source

OftalmosÁUridos (Ichthyosauria: Thunnosauria): taxonomía Alfa, clados y nombres [PDF]

open access: yes, 2015
Thunnosaurian ichthyosaurs represent the paradigm of reptilian body designed for a pelagic life style. Most derived thunnosaurian, the ophthalmosaurids, have been traditionally considered as members of a declining lineage.
Campos, Lisandro   +1 more
core   +3 more sources

Microanatomy and histology of the distal limb elements of ophthalmosaurids from the Middle Jurassic to the Lower Cretaceous of the Neuqu en Basin, Patagonia, Argentina [PDF]

open access: yes, 2020
Fil: Talevi, Marianella. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Campos, Lisandro. Universidad Nacional de Río Negro. Facultad de Ciencias Naturales y Museo.
Campos, Lisandro   +2 more
core  

New data on the ichthyosaur Platypterygius hercynicus and its implications for the validity of the genus [PDF]

open access: yes, 2012
The description of a nearly complete skull from the late Albian of northwestern France reveals previously unknown anatomical features of Platypterygius hercynicus, and of European Cretaceous ichthyosaurs in general.
Fischer, V
core  

Apendicular remains of an ophthalmosaurid ichthyosaur from the lower Barremian of Villa de Leiva, Colombia [PDF]

open access: yes, 2018
Se describen por primera vez restos apendiculares de ictiosaurio oftalmosáurido procedentes de la Formación Paja de Villa de Leiva, Colombia, cuya edad se establece como Barremiano inferior.
Cortés, Dirley   +1 more
core   +2 more sources

Ichthyosaurs from the Early Cretaceous (Hauterivian - Barremian) from the western border of the Tyndall Glacier in the Torres del Paine National Park, Southernmost Chile [PDF]

open access: yes, 2015
Three field campaigns to the eastern lobe of the Tyndall Glacier in the Torres del Paine National Park, southern Chile, allowed us to record 46 specimens of ichthyosaurs, which are almost completely exposed and articulated, as well as several associated ...
Pardo Pérez, Judith Mariana
core   +1 more source

A new phylogeny of ichthyosaurs (Reptilia: Diapsida) [PDF]

open access: yes, 2017
The largest phylogenetic analysis of ichthyosaurs to date is presented, with 114 ingroup taxa coded at species level. Completeness of the taxa included varied from > 98% to < 2%; 10 taxa were removed a priori using Concatabominations due to ...
Moon, Benjamin C.
core   +2 more sources

A Middle Jurassic (Bajocian) ophthalmosaurid (Reptilia, Ichthyosauria) from the Tuxedni Formation, Alaska and the early diversification of the clade [PDF]

open access: yes, 2017
Ophthalmosauridae is a clade of derived thunniform ichthyosaurs that are best known from Callovian (late Middle Jurassic) to Cenomanian-aged (Late Cretaceous) deposits in both the Northern and Southern Hemispheres.
DRUCKENMILLER, PATRICK S.   +1 more
core  

THE TAXONOMIC UTILITY OF FOREFIN MORPHOLOGY IN LOWER JURASSIC ICHTHYOSAURS: PROTOICHTHYOSAURUS AND ICHTHYOSAURUS

open access: yes, 2017
The validity of the parvipelvian ichthyosaur genus Protoichthyosaurus was evaluated by examining the type material and recently recognized specimens. Protoichthyosaurus has a wide forefin with at least five primary digits, an anterior digital bifurcation
Lomax, Dean   +2 more
core   +3 more sources

The anatomy, taxonomy and systematics of Middle Triassic–Early Jurassic ichthyosaurs (Reptilia: Ichthyopterygia) and the phylogeny of Ichthyopterygia [PDF]

open access: yes, 2018
Ichthyosaurs were a successful group of Mesozoic marine reptiles spanning a time interval of nearly 160 million years, from the Early Triassic to the early Late Cretaceous.
Wolniewicz, Andrzej
core   +1 more source

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