Results 41 to 50 of about 244 (140)

On Generic Characters in the Order Sauropterygia [PDF]

open access: yesQuarterly Journal of the Geological Society of London, 1883
The progress of knowledge of the species of Reptilia associated by De la Beche under the collective name Enaliosauria, led to the subdivision of that maritime group into the orders Ichthyopterygia and Sauropterygia, these terms being significative of their characters of resemblance respectively to Fishes and to Saurians.
openaire   +2 more sources

Pathological vertebrae in the holotype of Paludidraco multidentatus (Sauropterygia, Simosauridae) from the Upper Triassic of El Atance (Central Spain) [PDF]

open access: yesFossil Record
The record of paleopathologies in Mesozoic marine reptiles is relatively scarce in the literature compared to that on other lineages such as Dinosauria. In the case of Sauropterygia, these pathologies generally correspond to avascular necrosis, vertebral
Alberto Cabezuelo-Hernández   +3 more
doaj   +3 more sources

Tooth Structure and Replacement of the Triassic Keichousaurus (Sauropterygia, Reptilia) From South China

open access: yesFrontiers in Ecology and Evolution, 2021
The small-sized sauropterygian Keichousaurus hui was one of the most abundant marine reptiles from the Triassic Yangtze Sea in South China. Although Keichousaurus has been studied in many aspects, including the osteology, ontogeny, sexual dimorphism, and
Jun-ling Liao   +9 more
doaj   +1 more source

Paraplacodus and the phylogeny of the Placodontia (Reptilia: Sauropterygia) [PDF]

open access: yesZoological Journal of the Linnean Society, 2000
Abstract The skeletal anatomy of Paraplacodus broilii Peyer from the Grenzbitumen -horizon (Anisian–Ladinian boundary) of Monte San Giorgio (Switzerland) is described and compared with that of other placodonts. Paraplacodus is found to share a number of potential synapomorphies with Placodus which could potentially corroborate the monophyly of
openaire   +1 more source

A new elasmosaurid (Sauropterygia: Plesiosauria) from the non-marine to paralic Dinosaur Park Formation of southern Alberta, Canada [PDF]

open access: yesPeerJ, 2021
Elasmosaurid plesiosaurian remains have been documented from non-marine to paralic (fluvial to estuarine) sediments of the upper Campanian Dinosaur Park Formation (DPF) of southern Alberta since 1898.
James A. Campbell   +3 more
doaj   +2 more sources

III. On the shoulder girdle in ichthyosauria and sauropterygia [PDF]

open access: yesProceedings of the Royal Society of London, 1892
Abstract The author discusses the structure of the shoulder girdle and the homologies of its several parts in these families. He shows that the alleged existence of a precoracoid in the Ichthyosauria rests on an insufficient foundation; offers proofs that in Plesiosauria the anterior ventral ray is not only theoretically but actually ...
openaire   +1 more source

Kimmeridgian pliosaurids (Sauropterygia, Plesiosauria) from Tlaxiaco, Oaxaca, southern Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Fossil remains of two specimens of the family Pliosauridae are described in the present manuscript. These fossils are from the Kimmeridgian shallow marine strata belonging to the informally known Sabinal formation deposited in the Tlaxiaco Basin, which ...
Jair Israel Barrientos-Lara   +2 more
doaj   +1 more source

A CYAMODONTID PLACODONT (REPTILIA: SAUROPTERYGIA) FROM THE TRIASSIC OF SLOVENIA [PDF]

open access: yesPalaeontology, 2008
Abstract:  An isolated dentary bone from the Triassic of Toško Čelo, near Ljubljana (Slovenia) is referred to the genus Cyamodus. It is the first record of a placodont from Slovenia. The specimen is late Ladinian or early Carnian in age, and is thus among the latest known representatives of the genus Cyamodus.
ERIC BUFFETAUT, MATEVŽ NOVAK
openaire   +1 more source

An integrated approach to understanding the role of the long neck in plesiosaurs [PDF]

open access: yesActa Palaeontologica Polonica, 2017
The evolution and function of the long neck in plesiosaurs, and how the problems associated with stiffness or flexibility were overcome during feeding, or rapid swimming during predator avoidance, are explored, and a new interpretation for the function ...
Leslie F. Noè   +2 more
doaj   +1 more source

Elasmosaur (Reptilia: Sauropterygia) neck flexibility: Implications for feeding strategies

open access: yesComparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2008
Elasmosaurs were extremely long-necked, aquatic reptiles that used four flippers for locomotion. Their distinctive long neck distinguishes them from all other Mesozoic forms, yet the potential uses and constraints of this structure are poorly understood, particularly with regard to feeding.
Zammit, Maria.   +2 more
openaire   +5 more sources

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