Buscar
Mostrando ítems 1-10 de 21
Paleobiology of Argyrolagus (Marsupialia, Argyrolagidae): an astonishing case of bipedalism among South American mammals
(Springer, 2019-06-07)
Argyrolagus constitutes, both for its craniodental and postcranial anatomy, one of the most notably specialized South American Neogene metatherians. Differentiating it from any other South American mammal, bipedal jumping ...
Delayed Bilateral Teleoperation of the Speed and Turn Angle of a Bipedal Robot
(Cambridge University Press, 2020-07)
This paper proposes a shared control scheme which aims to achieve a stable control of the speed andturn of a bipedal robot during a delayed bilateral teleoperation. The strategy allows to get a delay-dependent damping value ...
Ontogenetic shape changes in the pelvis of the Greater Rhea (Aves, Palaeognathae) and their relationships with cursorial locomotion: a geometric morphometric approach
(Wiley Blackwell Publishing, Inc, 2020-06)
Knowledge of the ontogenetic pattern of morphological features is essential to improve biological interpretations. The study of morphological features of the pelvic girdle and hind limb apparatus throughout growth is an ...
Forelimb muscle and joint actions in Archosauria: Insights from Crocodylus johnstoni (Pseudosuchia) and Mussaurus patagonicus (Sauropodomorpha)
(PeerJ Inc., 2017-11)
Many of the major locomotor transitions during the evolution of Archosauria, the lineage including crocodiles and birds as well as extinct Dinosauria, were shifts from quadrupedalism to bipedalism (and vice versa). Those ...
A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture
(Wiley Blackwell Publishing, Inc, 2020-03)
Evolutionary transitions between quadrupedal and bipedal postures are pivotal to the diversification of amniotes on land, including in our own lineage (Hominini). Heterochrony is suggested as a macroevolutionary mechanism ...
Morphological variations in dinosaur tridactyl tracks from the Candeleros Formation (Upper Cretaceous) of northwestern Patagonia, Argentina
(Pergamon-Elsevier Science Ltd, 2021-06)
Several dinosaur tridactyl tracks showing inter- and intra-trackways morphological variations from the Cenomanian Candeleros Formation of the Neuquén Basin, Argentina, have been documented. Footprints occur on three different ...
New heterodontosaurid remains from the Cañadón Asfalto Formation: cursoriality and the functional importance of the pes in small heterodontosaurids
(Paleontological Society, 2016-11)
New ornithischian remains reported here (MPEF-PV 3826) include two complete metatarsi withassociated phalanges and caudal vertebrae, from the late Toarcian levels of the Cañadón Asfalto Formation.We conclude that these ...
Dynamic locomotor capabilities revealed by early dinosaur trackmakers from Southern Africa
(Public Library of Science, 2009-10)
Background: A new investigation of the sedimentology and ichnology of the Early Jurassic Moyeni tracksite in Lesotho, southern Africa has yielded new insights into the behavior and locomotor dynamics of early dinosaurs. ...
The origin and early evolution of dinosaurs
(Wiley Blackwell Publishing, Inc, 2010-02)
The oldest unequivocal records of Dinosauria were unearthed from Late Triassic rocks (approximately 230 Ma) accumulated over extensional rift basins in southwestern Pangea. The better known of these are Herrerasaurus ...
Locomotion and escape modes in rodents of the Monte Desert (Argentina)
(Wiley Blackwell Publishing, Inc, 2003-06)
Modes of locomotion and escape tactics are attributes that affect the structure of animal communities, promoting exploitation of different microhabitats and the coexistence of different species. Bipedal locomotion is ...