Results 31 to 40 of about 392 (145)
Anais da Academia Brasileira de Ciências, 2022 The Snow Hill Island Formation (SHIF; late Campanian – early Maastrichtian) crops out in the northeast of the Antarctic Peninsula and constitutes the basal part of the late Campanian-early Maastrichtian sedimentary succession of the James Ross Basin (NG ...
MARCELO A. REGUERO +14 more
doaj +1 more source
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
High-Latitude Dinosaur Nesting Strategies during the Latest Cretaceous in North-Eastern Russia
Diversity, 2023 Dinosaur eggshell fragments attributed to the oofamilies Spheroolithidae and Prismatoolithidae and recovered from the latest Cretaceous Kakanaut Formation of North-eastern Russia (Chukotka) constitute one of the northernmost records of dinosaur ...
Romain Amiot +8 more
doaj +1 more source
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
Tail Weaponry in Ankylosaurs and Glyptodonts: An Example of a Rare but Strongly Convergent Phenotype [PDF]
The Anatomical Record, 2019 ABSTRACTThe unusual clubbed tails of glyptodonts among mammals and ankylosaurines among dinosaurs most likely functioned as weapons of intraspecific combat or interspecific defense and are characterized by stiffening of the distal tail and, in some taxa, expansion of the distal tail tip.
Victoria M. Arbour, Lindsay E. Zanno
openaire +2 more sources
Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia) [PDF]
Historical Biology, 2016 AbstractAnkylosaurian dinosaurs were low-browsing quadrupeds that were traditionally thought of as simple orthal pulpers exhibiting minimal tooth occlusion during feeding, as in many extant lizards. Recent studies, however, have demonstrated that effective chewing with tooth occlusion and palinal jaw movement was present in some members of this group ...
Ősi, Attila +3 more
openaire +2 more sources
3D PDFs of ankylosaur SAMA P40536- Frauenfelder et al.
, 2021 Enclosed are 2, 3D PDFs. One of the entire skull block and a second of a maxillary tooth.Abstract:Australian dinosaur research has undergone a renaissance in the last 10 years, with growing knowledge of mid-Cretaceous assemblages revealing an endemic ...
Joseph J. Bevitt (3965156) +7 more
core +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
openaire +2 more sources
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