Results 1 to 10 of about 136 (75)

A Prevalence of Arthropterygius (Ichthyosauria: Ophthalmosauridae) in the Late Jurassic—Earliest Cretaceous of the Boreal Realm [PDF]

open access: yesPeerJ, 2019
The ichthyosaur genus Arthropterygius Maxwell, 2010 is considered as rare and poorly known. However, considering the existing uncertainty regarding its position in respect to ophthalmosaurid subfamilies in recent phylogenies, it is among the key taxa for
Nikolay G. Zverkov   +1 more
exaly   +15 more sources

Discovery of the first ichthyosaur from the Jurassic of India: Implications for Gondwanan palaeobiogeography. [PDF]

open access: yesPLoS ONE, 2017
An articulated and partially preserved skeleton of an ichthyosaur was found in the Upper Jurassic (Upper Kimmeridgian) Katrol Formation exposed at a site south of the village Lodai in Kachchh district, Gujarat (western India).
Guntupalli V R Prasad   +5 more
doaj   +3 more sources

New ophthalmosaurid ichthyosaurs from the European Lower Cretaceous demonstrate extensive ichthyosaur survival across the Jurassic-Cretaceous boundary. [PDF]

open access: yesPLoS ONE, 2012
BackgroundIchthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one during ...
Valentin Fischer   +9 more
doaj   +4 more sources

A new ophthalmosaurid ichthyosaur from the Upper Jurassic (Early Tithonian) Kimmeridge Clay of Dorset, UK, with implications for Late Jurassic ichthyosaur diversity. [PDF]

open access: yesPLoS ONE, 2020
A new ophthalmosaurid ichthyosaur, Thalassodraco etchesi gen. et sp. nov., from the Upper Jurassic Kimmeridge Clay Formation of Dorset, UK is described. The specimen, a partial, articulated skull and anterior thorax in the Etches Collection of Kimmeridge,
Megan L Jacobs, David M Martill
doaj   +3 more sources

An Upper Jurassic Ichthyosaur (Ichthyosauria: Ophthalmosauridae) From the Bowser Basin, British Columbia [PDF]

open access: yesCanadian Journal of Earth Sciences, 2016
Although the Jurassic was a period of high diversity in ichthyosaurs, only a small number of specimens have been recorded from Canada to date. We describe here a new occurrence of an ophthalmosaurid ichthyosaur from a shallow marine depositional environment within the Bowser Basin of northern British Columbia. Based on vertebral diameters and the size
Michael W. Caldwell   +2 more
exaly   +4 more sources

Refining the marine reptile turnover at the Early–Middle Jurassic transition [PDF]

open access: yesPeerJ, 2021
Even though a handful of long-lived reptilian clades dominated Mesozoic marine ecosystems, several biotic turnovers drastically changed the taxonomic composition of these communities.
Valentin Fischer, Robert Weis, Ben Thuy
doaj   +3 more sources

The soft tissue and skeletal anatomy of two Late Jurassic ichthyosaur specimens from the Solnhofen archipelago [PDF]

open access: yesPeerJ, 2022
Ichthyosaurs from the Solnhofen Lagerstätte are among the only examples of soft tissue preservation in the major Middle Jurassic–middle Cretaceous family Ophthalmosauridae.
Lene L. Delsett   +3 more
doaj   +3 more sources

A new specimen of Palvennia hoybergeti: implications for cranial and pectoral girdle anatomy in ophthalmosaurid ichthyosaurs [PDF]

open access: yesPeerJ, 2018
The Late Jurassic Slottsmøya Member Lagerstätte on Spitsbergen preserves a diverse array of marine reptiles, including four named taxa of ophthalmosaurid ichthyosaurs. One of these, Palvennia hoybergeti, is based on the single holotype specimen (SVB 1451)
Lene Liebe Delsett   +3 more
doaj   +3 more sources

Taxonomy of Platypterygius campylodon and the diversity of the last ichthyosaurs [PDF]

open access: yesPeerJ, 2016
A complex and confusing taxonomy has concealed the diversity dynamics of Cretaceous ichthyosaurs (Reptilia) for decades. The near totality of Albian-Cenomanian remains from Eurasia has been assigned, by default, to the loosely defined entity ...
Valentin Fischer
doaj   +3 more sources

Redescription and Phylogenetic Position of Caypullisaurus (Ichthyosauria: OPHTHALMOSAURIDAE) [PDF]

open access: yesJournal 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
Marta Susana Fernández
exaly   +5 more sources

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