Results 1 to 10 of about 69 (60)

Hadrosauroid eggs and embryos from the Upper Cretaceous (Maastrichtian) of Jiangxi Province, China [PDF]

open access: yesBMC Ecology and Evolution, 2022
Background Dinosaur eggs containing embryos are rare, limiting our understanding of dinosaur development. Recently, a clutch of subspherical dinosaur eggs was discovered while blasting for a construction project in the Upper Cretaceous red beds (Hekou ...
Lida Xing   +5 more
doaj   +2 more sources

A new hadrosauroid dinosaur from the early late cretaceous of Shanxi Province, China. [PDF]

open access: yesPLoS ONE, 2013
BackgroundThe origin of hadrosaurid dinosaurs is far from clear, mainly due to the paucity of their early Late Cretaceous close relatives. Compared to numerous Early Cretaceous basal hadrosauroids, which are mainly from Eastern Asia, only six early Late ...
Run-Fu Wang   +7 more
doaj   +2 more sources

THE UNUSUAL TAIL OF TETHYSHADROS INSULARIS (DINOSAURIA, HADROSAUROIDEA) FROM THE ADRIATIC ISLAND OF THE EUROPEAN ARCHIPELAGO

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The basal hadrosauroid Tethyshadros insularis from the uppermost Cretaceous of NE Italy lived on an island of the European archipelago in the Tethys Ocean.
FABIO MARCO DALLA VECCHIA
doaj   +4 more sources

A new basal hadrosauroid dinosaur (Dinosauria: Ornithopoda) with transitional features from the late cretaceous of Henan Province, China. [PDF]

open access: yesPLoS ONE, 2014
BackgroundSouthwestern Henan Province in central China contains many down-faulted basins, including the Xixia Basin where the Upper Cretaceous continental sediments are well exposed.
Hai Xing   +9 more
doaj   +2 more sources

Supplementary cranial description of the types of Edmontosaurus regalis (Ornithischia: Hadrosauridae), with comments on the phylogenetics and biogeography of Hadrosaurinae. [PDF]

open access: yesPLoS ONE, 2017
The cranial anatomy of the flat-skulled hadrosaurine Edmontosaurus regalis (Ornithischia: Hadrosauridae) is extensively described here, based on the holotype and paratype collected from the middle part of the Horseshoe Canyon Formation in southern ...
Hai Xing   +2 more
doaj   +2 more sources

Anatomy and osteohistology of the basal hadrosaurid dinosaur Eotrachodon from the uppermost Santonian (Cretaceous) of southern Appalachia [PDF]

open access: yesPeerJ, 2016
The cranial and postcranial anatomy of the basal hadrosaurid dinosaur Eotrachodon orientalis, from the uppermost Santonian of southern Appalachia (southeastern U.S.A.), is described in detail. This animal is the only known pre-Campanian non-lambeosaurine
Albert Prieto-Márquez   +2 more
doaj   +3 more sources

First population analysis in Hadrosauroid dinosaurs (Ornithopoda: Iguanodontia: Hadrosauroidea)

open access: yesEvolving Earth
The study of biological population densities through direct measurements is one of the pillars of modern ecology; however, it does not apply to extinct fauna without modern extant representatives, as is the case with non-avian, plant-eating dinosaurs ...
Francisco Javier Jiménez-Moreno   +4 more
doaj   +2 more sources

The dentary of hadrosauroid dinosaurs: evolution through heterochrony

open access: yesPalaeontology, Volume 66, Issue 5, September/October 2023., 2023
Abstract The near‐global distribution of hadrosaurid dinosaurs during the Cretaceous has been attributed to mastication, a behaviour commonly recognized as a mammalian adaptation. Its occurrence in a non‐mammalian lineage should be accompanied by the evolution of several morphological modifications associated with food acquisition and processing.
D. Fredrik K. Söderblom   +3 more
wiley   +1 more source

A new Arctic hadrosaurid from the Prince Creek Formation (lower Maastrichtian) of northern Alaska [PDF]

open access: yesActa Palaeontologica Polonica, 2016
The Liscomb bonebed in the Price Creek Formation of northern Alaska has produced thousands of individual bones of a saurolophine hadrosaurid similar to Edmontosaurus; however, the specific identity of this taxon has been unclear, in part because the vast
Hirotsugu Mori   +2 more
doaj   +1 more source

Anatomy and Relationships ofGilmoreosaurus mongoliensis(Dinosauria: Hadrosauroidea) from the Late Cretaceous of Central Asia [PDF]

open access: yesAmerican Museum Novitates, 2010
ABSTRACT The osteology of the hadrosauroid dinosaur Gilmoreosaurus mongoliensis is redescribed in detail based on the disarticulated cranial and postcranial elements of at least four individuals. These together constitute the lectotype and hypodigm of this species.
Prieto-Marquez, Albert, Norell, Mark A.
openaire   +2 more sources

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