Results 21 to 30 of about 278 (104)

A revision of the Ceratopsia or horned dinosaurs. [PDF]

open access: yes, 1933
3 pt.
Le Vene, Clara Mae.   +2 more
core   +2 more sources

Limb-Bone Scaling Indicates Diverse Stance and Gait in Quadrupedal Ornithischian Dinosaurs [PDF]

open access: yes, 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

Ontogenetic Niche Shifts in Megaherbivorous Dinosaurs of Late Cretaceous North America and their Ecological Implications [PDF]

open access: yes, 2020
Despite megaherbivore ontogeny being relatively well-studied, little research has been conducted on the ecological implications of growth stages. Using ecomorphological dietary correlates, investigations into potential ecological differences between ...
Wyenberg-Henzler, Taia Constance Alexis
core   +2 more sources

Systematics of Chasmosaurus -  new information from the Peabody Museum skull, and the use of phylogenetic analysis for dinosaur alpha taxonomy [PDF]

open access: yesF1000Research, 2015
The horned dinosaur Chasmosaurus from the late Campanian Dinosaur Park Formation of Alberta, is known from numerous skulls and skeletons, but over a century after its description, the taxonomy of the genus is controversial. Two species, Chasmosaurus belli and C. russelli, are currently recognized, with a third species, C. irvinensis, recently placed in
openaire   +1 more source

A survey of dinosaur diversity by clade, age, place of discovery and year of description [PDF]

open access: yes, 2014
Dinosaur diversity is analyzed in terms of the number of valid genera within each major clade, Mesozoic age, place of discovery and year of description. Aves (Archaeopteryx + Neornithes) is excluded. Nomina nuda and nomina dubia are not counted.
Taylor, Michael
core   +3 more sources

A neoceratopsian dinosaur from the early Cretaceous of Mongolia and the early evolution of ceratopsia [PDF]

open access: yes, 2020
Ceratopsia is a diverse dinosaur clade from the Middle Jurassic to Late Cretaceous with early diversification in East Asia. However, the phylogeny of basal ceratopsians remains unclear.
Badamkhatan, Zorigt   +4 more
core   +1 more source

Macroevolutionary patterns in cranial and lower jaw shape of ceratopsian dinosaurs (dinosauria, ornithischia). phylogeny, morphological integration, and evolutionary rates [PDF]

open access: yes, 2017
Organisms: Ceratopsians were herbivorous, beaked dinosaurs, ranging from 1 m to 9 m in body length, usually four-footed, and with a bony frill that extended backwards from the cranium over the nape of the neck. Known from Asia, Europe, and North America,
Farke, Aa   +3 more
core  

Особенности строения позвонков завропод из коллекции Палеонтологического музея НИ ТГУ [PDF]

open access: yes, 2022
В работе предложен обзор остатков позвонков завропод и их описание. Были выделены главные особенности строения скелета завропод с точки зрения развития адаптаций, помогающих данным животным иметь гигагантский размер.
Зуйкова, Екатерина Андреевна
core   +1 more source

Master of Science [PDF]

open access: yes, 2011
thesisRemains of a previously unknown horned dinosaur were recently recovered from the Upper Cretaceous (Campanian) Kaiparowits Formation of Grand Staircase-Escalante National Monument, southern Utah.
Lund, Eric Karl
core  

Redescription Of A Specimen Of Pentaceratops (Ornithischia: Ceratopsidae) And Phylogenetic Evaluation Of Five Referred Specimens From The Upper Cretaceous Of New Mexico [PDF]

open access: yes, 2015
Pentaceratops sternbergi is a late Campanian ceratopsian predominately known from the San Juan Basin in New Mexico. Previous specimen descriptions and cladistic analyses are based on partial skulls and composite specimens, which places Pentaceratops as ...
Fry, Joshua J.
core   +1 more source

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