Results 31 to 40 of about 204 (109)
The Anatomical Record, Volume 306, Issue 10, Page 2514-2536, October 2023., 2023 Abstract A reversion to secondary quadrupedality is exceptionally rare in nature, yet the convergent re‐evolution of this locomotor style occurred at least four separate times within Dinosauria. Facultative quadrupedality, an intermediate state between obligate bipedality and obligate quadrupedality, may have been an important transitional step in this
Lilian Anderson +4 more
wiley +1 more source
Notes on the pelvic armor of European ankylosaurs (Dinosauria: Ornithischia) [PDF]
Cretaceous Research, 2017 Abstract The pelvic armor elements in the ankylosaurian material from the Upper Cretaceous of Iharkut, Hungary are described here. Among these, a new articulated hip region of a small bodied ankylosaur is referred here to cf. Struthiosaurus sp. It preserves, uniquely among Late Cretaceous European ankylosaurs, an in situ pelvic armor composed of ...
Ősi, Attila, Pereda-Suberbiola, Xabier
openaire +2 more sources
Rivista Italiana di Paleontologia e Stratigrafia, 2008 Several dinosaur footprints were discovered on three different levels cropping out in the CO.L.MAR quarry, south of the village of Borgo Celano in the Gargano Promontory (Apulia, southern Italy).
FABIO MASSIMO PETTI +5 more
doaj +1 more source
Middle Jurassic ankylosaur tracks from Mexico
Boletín de la Sociedad Geológica Mexicana, 2018 espanolUna localidad icnofosilifera en una de las orillas del Rio Numi en las cercanias de la Ciudad de Tlaxiaco, noroeste de Oaxaca, al sur de Mexico, conserva las huellas de dinosaurios sauropodos y teropodos; esta se localiza dentro de la secuencia estratigrafica de la Formacion Zorrillo-Taberna Indiferenciadas, de edad Jurasico Medio (Bajociano ...
Rubén A. Rodríguez-de la Rosa +3 more
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Journal of Vertebrate Paleontology, 2020 Ankylosaurs, dinosaurs possessing extensive body armor, were significant components of terrestrial ecosystems from the Middle Jurassic–latest Cretaceous. They diversified during the Early Cretaceous, becoming globally widespread. The Lower Cretaceous Wealden Supergroup (Berriasian–Aptian) of Britain has produced abundant ankylosaur material, with three
Thomas J. Raven +3 more
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Papers in Palaeontology, Volume 12, Issue 1, January/February 2026.Abstract The Late Cretaceous witnessed numerous transgression–regression sequences and the onset of a global cooling phase at the start of the Campanian. In the European archipelago, these environmental changes, combined with active plate tectonics, facilitated the formation of ephemeral land bridges that served as dispersal routes for a variety of ...
Olivier Jansen +5 more
wiley +1 more source
Sedimentology, Volume 73, Issue 1, Page 147-185, January 2026.ABSTRACT Mongolia's Eastern and Western Gobi Basins preserve a globally significant record of Cretaceous terrestrial vertebrates, yet their biostratigraphic correlations are complicated by a complex geological history. The Eastern Gobi Basin, a northeast‐southwest trending fault‐bounded rift system, includes several minor sub‐basins with distinct ...
Ryan T. Tucker +9 more
wiley +1 more source
Tectonics, geology and origins of Te Riu‐a‐Māui / Zealandia
New Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 531-567, December 2025.ABSTRACT Te Riu‐a‐Māui / Zealandia is a 95% submerged, five million square km southern hemisphere continent that includes the islands of New Zealand and New Caledonia. For the last 45 million years (Ma) Zealandia has been cut by the Pacific‐Australian plate boundary which today changes character from a west‐dipping subduction zone in the north to ...
Nick Mortimer
wiley +1 more source
Review of the tetrapod skull–neck boundary: implications for the evolution of the atlas–axis complex
Biological Reviews, Volume 100, Issue 6, Page 2435-2470, December 2025.ABSTRACT This review describes variation in modern and fossil occiput–atlas–axis complex anatomy of total group Tetrapoda with the aim of documenting the range of structural variation throughout their evolutionary history to establish grounds for comparison of the complex between tetrapod clades.
Dana E. Korneisel, Hillary C. Maddin
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Wear Pattern, Dental Function, and Jaw Mechanism in the Late Cretaceous Ankylosaur Hungarosaurus [PDF]
The Anatomical Record, 2014 ABSTRACTFeeding in thyreophoran dinosaurs is poorly understood. Although the group existed for over 130 million years, only the Early Jurassic basal thyreophoran Scelidosaurus harrisonii and the Late Cretaceous ankylosaurid Euoplocephalus tutus have been studied from this perspective in detail.
Ősi, Attila +3 more
openaire +3 more sources