Results 51 to 60 of about 503 (168)

On the Structure of the Plesiosauria Skull [PDF]

open access: yesQuarterly Journal of the Geological Society of London, 1896
The structure of the skull of the Liassic Plesiosauria has been discussed by many writers, but the various accounts that have been given of it are incomplete, and often differ one from the other in important particulars, doubtless owing to the fact that in most cases the specimens examined are much crushed, and are embedded in the matrix ...
openaire   +1 more source

Boreal waterways: An Early Cretaceous plesiosaur from Ellesmere Island, Nunavut, Canadian Arctic and its palaeobiogeography [PDF]

open access: yesActa Palaeontologica Polonica
A plesiosaur specimen collected from Ellesmere Island (Nunavut, Arctic Canada) by Danish geologist Johannes Troelsen in 1952 is described for the first time. The plesiosaur is late Berriasian to early Valanginian in age based on palynostratigraphy.
Lene L. Delsett   +3 more
doaj   +1 more source

New information on Hauffiosaurus (Reptilia, Plesiosauria) based on a new species from the Alum Shale Member (Lower Toarcian: Lower Jurassic) of Yorkshire [PDF]

open access: yes, 2011
An almost complete, three-dimensionally preserved plesiosaurian from the Hildoceras bifrons Zone of the Alum Shale Member (Whitby Limestone Formation; Lower Toarcian) of Yorkshire, UK, is described in detail.
Benson, R. B. J.   +7 more
core   +1 more source

A CRETACEOUS PLESIOSAUR REMAIN (REPTILIA, SAUROPTERYGIA) FROM THE ARGILLE VARICOLORI OF VARZI (PAVIA, LOMBARDY, NORTHERN ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
The first finding of a plesiosaur remain in Italy is reported. The specimen, a single humerus has been collected in the Argille Varicolori formation, in an outcrop close to the village ol Zavattarello near Varzi (Pavia, Lombardy, Northern Italy ...
SIVIO RENESTO
doaj   +1 more source

Youngest occurrences of rhomaleosaurid plesiosaurs indicate survival of an archaic marine reptile clade at high palaeolatitudes [PDF]

open access: yesActa Palaeontologica Polonica, 2015
Rhomaleosaurid plesiosaurians were a common and ecologically significant component of Early Jurassic marine faunas, primarily as large-bodied predators. They declined in abundance and made their last fossil appearance in the Middle Jurassic. However, the
Roger B.J. Benson   +2 more
doaj   +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

New freshwater plesiosaurian materials from the Middle Jurassic Xintiangou Formation of the Sichuan Basin, southwestern China

open access: yesJournal of Palaeogeography, 2020
Sichuan Basin is very famous for the Mesozoic reptiles, especially the Jurassic dinosaurs. Here, we report some isolated plesiosaurian teeth and vertebrae newly excavated from the Middle Jurassic Xintiangou Formation in Yunyang county, Chongqing City ...
Feng Zhang   +5 more
doaj   +1 more source

Reassessment of 'Plesiosaurus' megacephalus (Sauropterygia: Plesiosauria) from the Triassic-Jurassic boundary, UK [PDF]

open access: yesPalaeontologia Electronica, 2015
Smith, AS (2015): Reassessment of 'Plesiosaurus' megacephalus (Sauropterygia: Plesiosauria) from the Triassic-Jurassic boundary, UK.
openaire   +2 more sources

Páramo-Fonseca et al - Supplemental Data 2 - Phylogenetic data set

open access: yes, 2023
 PROCUMBENT ANTERIOR PREMAXILLARY TEETH IN  STENORHYNCHOSAURUS MUNOZI, EVIDENCE FROM NEW MATERIAL María Eurídice Páramo-Fonseca1, Cristian David Benavides-Cabra, Héctor Daniel Palma-Castro and Antonio José Castañeda-Gómez Phylogenetic data set of ...
Cristian David Benavides Cabra (14040864)
core   +1 more source

Skeletal completeness of the non‐avian theropod dinosaur fossil record

open access: yesPalaeontology, Volume 62, Issue 6, Page 951-981, November 2019., 2019
Abstract Non‐avian theropods were a highly successful clade of bipedal, predominantly carnivorous, dinosaurs. Their diversity and macroevolutionary patterns have been the subject of many studies. Changes in fossil specimen completeness through time and space can bias our understanding of macroevolution.
Daniel D. Cashmore   +2 more
wiley   +1 more source

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