Results 1 to 10 of about 204 (109)

Cranial ornamentation in the Late Cretaceous nodosaurid ankylosaur Hungarosaurus [PDF]

open access: yesPeerJ, 2021
Bony cranial ornamentation is developed by many groups of vertebrates, including ankylosaur dinosaurs. To date, the morphology and ontogenetic origin of ankylosaurian cranial ornamentation has primarily focused on a limited number of species from only ...
Attila Ősi   +3 more
doaj   +9 more sources

An ankylosaur larynx provides insights for bird-like vocalization in non-avian dinosaurs [PDF]

open access: yesCommunications Biology, 2023
The earliest larynx discovered in fossil dinosaurs indicates that non-avian dinosaurs may have had bird-like vocalization.
Junki Yoshida   +2 more
doaj   +4 more sources

Probable ankylosaur ossicles from the middle Cenomanian Dunvegan formation of northwestern Alberta, Canada. [PDF]

open access: yesPLoS ONE, 2014
A sample of six probable fragmentary ankylosaur ossicles, collected from Cenomanian deposits of the Dunvegan Formation along the Peace River, represent one of the first dinosaurian skeletal fossils reported from pre-Santonian deposits in Alberta ...
Michael E Burns, Matthew J Vavrek
doaj   +5 more sources

Ankylosaur remains from the early cretaceous (valanginian) of northwestern Germany. [PDF]

open access: yesPLoS ONE, 2013
A fragmentary cervico-pectoral lateral spine and partial humerus of an ankylosaur from the Early Cretaceous (early Valanginian) of Gronau in Westfalen, northwestern Germany, are described.
Sven Sachs, Jahn J Hornung
doaj   +7 more sources

Divergent strategies in cranial biomechanics and feeding ecology of the ankylosaurian dinosaurs [PDF]

open access: yesScientific Reports, 2023
Ankylosaurs were important megaherbivores of Jurassic and Cretaceous ecosystems. Their distinctive craniodental anatomy and mechanics differentiated them from coexisting hadrosaurs and ceratopsians, and morphological evidence suggests dietary niche ...
Antonio Ballell   +2 more
doaj   +2 more sources

A new Cretaceous thyreophoran from Patagonia supports a South American lineage of armoured dinosaurs [PDF]

open access: yesScientific Reports, 2022
The early evolution of thyreophoran dinosaurs is thought to have occurred primarily in northern continents since most evidence comes from the Lower and Middle Jurassic of Europe and North America.
Facundo J. Riguetti   +2 more
doaj   +2 more sources

A Late Cretaceous dinosaur and crocodyliform faunal association-based on isolate teeth and osteoderms-at Cerro Fortaleza Formation (Campanian-Maastrichtian) type locality, Santa Cruz, Argentina. [PDF]

open access: yesPLoS ONE, 2021
The Late Cretaceous dinosaur record in southern South America has been improved recently; particularly with findings from Chorrillo and Cerro Fortaleza formations, both bearing ankylosaur remains, a clade that was not previously recorded in the Austral ...
Ariana Paulina-Carabajal   +4 more
doaj   +2 more sources

Dental microwear of a basal ankylosaurine dinosaur, Jinyunpelta and its implication on evolution of chewing mechanism in ankylosaurs. [PDF]

open access: yesPLoS ONE, 2021
Jinyunpelta sinensis is a basal ankylosaurine dinosaur excavated from the mid Cretaceous Liangtoutang Formation of Jinyun County, Zhejiang Province, China.
Tai Kubo   +3 more
doaj   +2 more sources

A new vertebrate fauna from the Lower Cretaceous Holly Creek Formation of the Trinity Group, southwest Arkansas, USA [PDF]

open access: yesPeerJ, 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   +3 more sources

The world’s oldest cerapodan ornithischian dinosaur from the Middle Jurassic of Morocco [PDF]

open access: yesRoyal Society Open Science
The cerapodan dinosaurs were an ornithischian clade that achieved a global distribution in the Cretaceous Period. The ichnological record suggests that these dinosaurs had evolved by the Middle Jurassic, but only a single cerapodan body fossil, an ...
Susannah Maidment   +7 more
doaj   +2 more sources

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