Variability in biological diversity of dinosaurs and types of their diet [PDF]
E3S Web of Conferences, 2023 Biodiversity analysis underlies macroevolutionary studies and allows to identify mass extinctions. Numerous studies of mass extinctions show that geological factors play a central role in determining the diversity dynamics. The late Cretaceous extinction
Egorov Pavel +4 more
doaj +1 more source
New Bathonian (Middle Jurassic) sauropod remains from the Valtos Formation, Isle of Skye, Scotland [PDF]
, 2016 The discovery of a sauropod tooth and a single sauropod footprint from the Valtos Formation supplements our knowledge of these dinosaurs from the Middle Jurassic of the Isle of Skye.
Clark, Neil D.L., Gavin, Patrick
core +4 more sources
Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal [PDF]
Acta Palaeontologica PolonicaThe first paleontological works on Mesozoic vertebrates from Portugal, carried out from the end of the 19th and the first half of the 20th century, provided the discovery of significant collections of vertebrate fossils.
Elisabete Malafaia +4 more
doaj +1 more source
The first Jurassic theropod from the Sergi Formation, Jatobá Basin, Brazil
Anais da Academia Brasileira de Ciências, 2021 Archosaur osteological remains are abundant in Brazil, particularly from the Triassic and Cretaceous strata, but in Jurassic, the record is predominantly represented by ichnofossils.
KAMILA L.N. BANDEIRA +5 more
doaj +1 more source
A new vertebrate fauna from the Lower Cretaceous Holly Creek Formation of the Trinity Group, southwest Arkansas, USA [PDF]
PeerJ, 2021 We present a previously discovered but undescribed late Early Cretaceous vertebrate fauna from the Holly Creek Formation of the Trinity Group in Arkansas.
Celina A. Suarez +6 more
doaj +2 more sources
Limb-Bone Scaling Indicates Diverse Stance and Gait in Quadrupedal Ornithischian Dinosaurs [PDF]
, 2012 Background The most primitive ornithischian dinosaurs were small bipeds, but quadrupedality evolved three times independently in the clade. The transition to quadrupedality from bipedal ancestors is rare in the history of terrestrial vertebrate ...
Barrett, PM +3 more
core +1 more source
Postcranial osteology of the first early-stage juvenile skeleton of Plateosaurus trossingensis from the Norian of Frick, Switzerland [PDF]
Acta Palaeontologica Polonica, 2020 Owing to monospecific mass-accumulation sites in Central Europe, the early-branching sauropodomorph Plateosaurus has one of the best fossil records among dinosaurs. Despite this, early-stage juveniles have been conspicuously absent.
Darius Nau +3 more
doaj +1 more source
New theropod (Tetanurae: Avetheropoda) material from the ‘mid’-Cretaceous Griman Greek Formation at Lightning Ridge, New South Wales, Australia [PDF]
Royal Society Open Science, 2019 The limited fossil record of Australian Cretaceous theropods is dominated by megaraptorids, reported from associated and isolated material from the Early Cretaceous of Victoria and the ‘Mid’-Cretaceous of central-north New South Wales and central ...
Tom Brougham +2 more
doaj +1 more source
The enamel microstructure of Manidens condorensis: New hypotheses on the ancestral state and evolution of enamel in Ornithischia [PDF]
Acta Palaeontologica Polonica, 2020 Previous studies on enamel microstructure in Ornithischia have focused on derived lineages of this clade based on species from the northern hemisphere.
Marcos G. Becerra, Diego Pol
doaj +1 more source
Histological evidence for a supraspinous ligament in sauropod dinosaurs [PDF]
, 2015 Supraspinous ossified rods have been reported in the sacra of some derived sauropod dinosaurs. Although different hypotheses have been proposed to explain the origin ofthis structure, histological evidence has never been provided to support or reject any
Abdalla O +37 more
core +2 more sources