Now showing items 1-10 of 34
First Approach to the Paleobiology of Extinct Prospaniomys (Rodentia, Hystricognathi, Octodontoidea) Through Head Muscle Reconstruction and the Study of Craniomandibular Shape Variation
Prospaniomys is a basal octodontoid recorded in the early Miocene in Patagonia (Argentina; Colhuehuapian SALMA). Nearly complete cranial and mandibular remains known for this genus provide a unique opportunity to explore ...
Deep changes in masticatory patterns and masseteric musculature configurations accompanied the eco-morphological evolution of cavioid rodents (Hystricognathi, Caviomorpha)
(Elsevier Gmbh, 2019-05)
Cavioids are one of the most eco-morphologically divergent clades among South American caviomorph rodents. In an unique way, they display three mandibular morpho-types which are linked to the relative positions and relations ...
Snout shape and masticatory apparatus of the rodent-like mesotheriidungulates (Typotheria, Notoungulata): exploring evolutionary trends in dietary strategies through ancestralreconstructions
(Wiley Blackwell Publishing, Inc, 2021-05)
Mesotheriidae were small to medium-sized native South American ungulates. Mesotheriids radiated from the early Oligocene epoch to the early–middle Pleistocene, in two subfamilies: Trachytheriinae and Mesotheriinae. Beyond ...
Heterodonty and double occlusion in Manidens condorensis: a unique adaptation in an Early Jurassic ornithischian improving masticatory efficiency
New materials of the ornithischian dinosaur Manidens condorensis highlight a strong heterodonty between the upper and lower dentitions and reveal a novel occlusion type previously unreported in herbivorous dinosaurs. The ...
A reassessment of the genus Groeberia Patterson, 1952 (Mammalia, Metatheria): functional and phylogenetic implications
(Taylor & Francis, 2020-01)
With two recognized species, the extinct (late Eocene) Groeberia is periodically at the centre of systematic disputes. On the basis of its best-preserved specimen, we describe in detail the dental and functional morphology ...
Growth of functional cranial components in rats submitted to intergenerational undernutrition
(Wiley Blackwell Publishing, Inc, 2006-08)
The aim of the present study was to discover how intergenerational undernutrition affects the growth of major and minor functional cranial components in two generations of rats. Control animals constituted the parental ...
A new Pre-Deseadan Pyrothere (Mammalia) from northern Peru and the wear facets of molariform teeth of Pyrotheria
(Society of Vertebrate PaleontologyUS, 2006-09)
Baguatherium jaureguii gen. et sp. nov. from the early Oligocene of northern Peru is the best known pre-Deseadan pyrothere. It has a relatively wider palate and less oblique lophs on the molariform teeth than Pyrotherium ...
A new modification of the dental prosthesis in the postoperative restoration of chewing function
(Universidad del Zulia, 2020)
Functional-cranial approach to the influence of economic strategy on skull morphology
(Wiley-liss, Div John Wiley & Sons Inc, 2005-12)
Environmental factors are assumed to play an important role in the shaping of craniofacial morphology. Here we propose a statistical approach which can be of utility in estimating the magnitude and localization of a ...