Now showing items 1-10 of 49
A new early Miocene octodontoid rodent (Hystricognathi, Caviomorpha) from Patagonia (Argentina) and a reassessment of the early evolution of Octodontoidea
(Society of Vertebrate Paleontology, 2014-03)
A new caviomorph rodent, Dudumus ruigomezi, gen. et sp. nov., is described from the Sarmiento Formation, Trelew Member (early Miocene), of the Argentinian Patagonia. This new taxon is represented by upper and lower cheek ...
Analysis of arch-like bones: The rodent mandible as a case study
(John Wiley and Sons Inc., 2016-07)
Bone strength is determined by the mechanical properties of bone material, and the size and shape of the whole bone, i.e., its architecture. The mandible of vertebrates has been traditionally regarded as a beam oriented ...
Quinolizidine alkaloids in Ormosia arborea seeds inhibit predation but not hoarding by agoutis (Dasyprocta leporina)
(Kluwer Academic/plenum Publ, 2003-05-01)
Quinolizidine alkaloids (QAs) are secondary compounds found in seeds of many species of plants, possibly protecting them against pathogens and seed predators. QAs were isolated from Ormosia arborea seeds and bioassayed ...
Systematic Revision of the Vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, Late Pliocene of Buenos Aires Province, Argentina
(Asociacion Paleontologica Argentina, 2017-02)
Los roedores lagostominos (Caviomorpha, Chinchillidae) son muy abundantes en las asociaciones de vertebrados en el Cenozoico tardío del área pampeana, pero su estudio sistemático se limita mayormente a algunos trabajos de ...
Reappraisal of the giant caviomorph rodent Phoberomys burmeisteri (Ameghino, 1886) from the late Miocene of northeastern Argentina, and the phylogeny and diversity of Neoepiblemidae
(Taylor & Francis, 2018-05)
Phoberomys is a giant caviomorph rodent included in the extinct Neoepiblemidae. It is recorded in the late Miocene-Pliocene of South America (Argentina, Venezuela, Brazil and Peru), and is one of the largest rodents that ...
Geographic Variation in Cranial Morphology of the Southern Mountain Cavy, Microcavia australis (Rodentia, Caviidae): Taxonomic Implications, with the Description of A New Species
(Academia Sinica, 2017-10)
We analyzed the geographic variation in cranial morphology of the Southern Mountain Cavy, Microcavia australis, throughout of its distributional range. Our analysis allows us to recognize three geographically allopatric ...
Systematic and biostratigraphic significance of a chinchillid rodent from the Pliocene of eastern Argentina
(Polish Academy of Sciences. Institute of Paleobiology, 2013-06)
Two species of chinchillid rodents, Lagostomus (Lagostomopsis) incisus and “Lagostomus (Lagostomopsis) spicatus”, have been recorded from the Monte Hermoso Formation (Montehermosan–Lower Chapadmalalan, Early Pliocene) of ...
Fleshy pulp enhances the location of Syagrus romanzoffiana (Arecaceae) fruits by seed-dispersing rodents in an Atlantic forest in south-eastern Brazil
(Cambridge Univ PressNew YorkEUA, 2005)
Testing the quick meal hypothesis: the effect of pulp on hoarding and seed predation of Hymenaea courbaril by red-rumped agoutis (Dasyprocta leporina)
(Blackwell Publishing, 2006-02-01)
Red-rumped agoutis (Dasyprocta leporina) are important seed dispersers/predators of Neotropical large-seeded plants. Several species of seeds cached by agoutis have an edible reward, in contrast to temperate rodent-dispersed ...