Results 51 to 60 of about 1,576 (193)
Rivista Italiana di Paleontologia e Stratigrafia, 2022 The enigmatic marine reptile Helveticosaurus zollingeri, from the Middle Triassic Besano Formation of Monte San Giorgio, is known from three specimens found in Swiss territory. This paper describes the first skeletal remains of this taxon recovered from
Gabriele Bindellini, CRISTIANO DAL SASSO
doaj +1 more source
A large aberrant stem ichthyosauriform indicating early rise and demise of ichthyosauromorphs in the wake of the end-Permian extinction [PDF]
, 2016 Contrary to the fast radiation of most metazoans after the end-Permian mass extinction, it is believed that early marine reptiles evolved slowly during the same time interval.
Fraser, Nicholas C +10 more
core +2 more sources
Papéis Avulsos de Zoologia, 2011 La proporción entre el segundo y cuarto dígito (2D/4D) ha sido bien estudiada como un dimorfismo sexual que puede resultar de los efectos androgénicos prenatales sobre la expresión de los genes homeobox.
Mauricio Peñuela
doaj +1 more source
Osteohistology of hyperodapedontine rhynchosaurs from the Upper Triassic of Southern Brazil [PDF]
Acta Palaeontologica Polonica, 2015 The first osteohistological study focused exclusively on rhynchosaurs (non-archosauriform archosauromorphs), based on the hyperodapedontines Teyumbaita sulcognathus and Hyperodapedon sp., from the Upper Triassic of Southern Brazil, indicates a relatively
Fábio Hiratsuka Veiga +2 more
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Cranial anatomy and palaeoneurology of the archosaur Riojasuchus tenuisceps from the Los Colorados Formation, La Rioja, Argentina. [PDF]
, 2016 Riojasuchus tenuisceps Bonaparte 1967 is currently known from four specimens, includingtwo complete skulls, collected in the late 1960s from the upper levels of the Los ColoradosFormation (Late Triassic), La Rioja, Argentina.
Desojo, Julia Brenda, Von Baczko, Belen
core +1 more source
A new phylogeny of ichthyosaurs (Reptilia: Diapsida) [PDF]
Journal of Systematic Palaeontology, 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 incompleteness and taxonomic uncertainty.
openaire +3 more sources
The taxonomy and anatomy of rauisuchian archosaurs from the Late Triassic of Germany and Poland [PDF]
, 2009 The German Late Triassic archosaur Teratosaurus suevicus is a historically important taxon, being the first described rauisuchian. Unfortunately the holotype is a single element, a maxilla, which is poorly preserved and incomplete.
Alcober O. +36 more
core +1 more source
The origin of the turtle body plan: evidence from fossils and embryos
Palaeontology, Volume 63, Issue 3, Page 375-393, May 2020., 2020 Abstract The origin of the unique body plan of turtles has long been one of the most intriguing mysteries in evolutionary morphology. Discoveries of several new stem‐turtles, together with insights from recent studies on the development of the shell in extant turtles, have provided crucial new information concerning this subject.
Rainer R. Schoch +2 more
wiley +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2023 Discovery of two different morphologies of the hindlimb in specimens ascribed to the Triassic drepanosauromorph diapsid Megalancosaurus led to the erection of two distinct species within this genus: M. preonensis and M. endennae.
Silvio Renesto, FRANCO SALLER
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First Triassic tetrapod (Sauropterygia, Nothosauridae) from Castilla y León: evidence of an unknown taxon for the Spanish record [PDF]
, 2016 Several vertebrae of a sauropterygian specimen have been recovered in Fuencaliente de Medinaceli (Soria Province, Castilla y León, Spain). The remains come from Middle–Upper Triassic Muschelkalk Facies.
de Miguel Chaves, Carlos +4 more
core +2 more sources