• Corpus ID: 127117976

Hypsodonty and body size in rodent-like notoungulates

  title={Hypsodonty and body size in rodent-like notoungulates},
  author={Mar Reguero and Adriana M. Candela and Guillermo H. Cassini},
Ontogenetic variations and structural adjustments in mammals evolving prolonged to continuous dental growth
It is found that variations of occlusal complexity patterns are the result of paedomorphic or peramorphic heterochronic processes impacting dental crown, and it is shown that variations in both upper and lower molar proportions generally follow the inhibitory developmental cascade model.
Evolutionary and Functional Implications of Incisor Enamel Microstructure Diversity in Notoungulata (Placentalia, Mammalia)
Comparisons with perissodactyls showed that notoungulates paralleled equids in some aspects related to abrasion resistance, in having evolved transverse to oblique HSB combined with modified radial enamel and high-crowned incisors.
Patagonian Eocene Archaeopithecidae Ameghino, 1897 (Notoungulata): systematic revision, phylogeny and biostratigraphy
  • B. Vera
  • Geography, Environmental Science
    Journal of Paleontology
  • 2017
An exhaustive revision of the Archaeopithecidae has permitted improving the knowledge of A. rogeri and, for the first time, it has revealed many craniodental characters, which allow amending its diagnosis and differentiating this taxon from other Eocene notoungulates.
A New South American Paleogene Land Mammal Fauna, Guabirotuba Formation (Southern Brazil)
The Paleogene vertebrate-bearing sites of Brazil are restricted to few formations such as Maria Farinha (Late Cretaceous-early Paleocene), Itaboraí (early Eocene), Entre-Córregos (Eocene-Oligocene),
Cavioids, Chinchilloids, and Erethizontoids (Hystricognathi, Rodentia, Mammalia) of the Early Miocene Pampa Castillo Fauna, Chile
ABSTRACT Caviomorph rodents became important components of South American faunas after their Eocene arrival from Africa. Here we describe the cavioid, chinchilloid, and erethizontoid caviomorphs of
Tooth Size Variation in Assemblages of Tremacyllus (Hegetotheriidae, Notoungulata): Insights into Geographical Gradients, Systematics, and Sexual Dimorphism
  • M. A. Armella
  • Geography, Environmental Science
    Journal of Mammalian Evolution
  • 2021
Analysis of tooth size variations within assemblages of Tremacyllus indicates that patterns of variation might be associated with eruption time and/or functional position, and two size subgroups might reflect sexual dimorphism in the absence of biostratigraphic or morphological differences between them.
Enamel microstructure of permanent and deciduous teeth of a species of notoungulate Toxodon: Development, functional, and evolutionary implications
Enamel microstructure is studied here in Toxodon sp., a notoungulate from the Pleistocene of South America. The material includes 13 specimens from outcrops in São Paulo and Rio Grande do Sul states,
A singular Hegetotheriinae (Notoungulata, Typotheria) from the late Oligocene-Early Miocene of the Subandean Region of Bolivia
Abstract Geological studies in the northern sector of the Chaco foreland Basin, Bolivia, yielded new fossils coming from late Oligocene-late Miocene of the Petaca Formation. Few fossil mammals were