Helder Gomes Rodrigues
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View article: Accommodation of Dental Variations During Jaw Growth in Ungulate Mammals
Accommodation of Dental Variations During Jaw Growth in Ungulate Mammals Open
The growth of teeth and jaw bones is intimately linked in vertebrates, especially in mammals due to their specialized dentition and limited body growth. However, the relative patterns of growth and level of integration (i.e., co‐variation)…
View article: Lose your teeth but keep your nerve! Lessons from sea cows...
Lose your teeth but keep your nerve! Lessons from sea cows... Open
International audience
View article: From teeth to pad: tooth loss and development of keratinous structures in sirenians
From teeth to pad: tooth loss and development of keratinous structures in sirenians Open
Sirenians are a well-known example of morphological adaptation to a shallow-water grazing diet characterized by a modified feeding apparatus and orofacial morphology. Such adaptations were accompanied by an anterior tooth reduction associa…
View article: Towards a better knowledge of the molar morphology and ecology of extant and fossil grass rats (Muridae:<i>Arvicanthis</i>Lesson, 1842)
Towards a better knowledge of the molar morphology and ecology of extant and fossil grass rats (Muridae:<i>Arvicanthis</i>Lesson, 1842) Open
African rodents of the genus Arvicanthis are presently restricted to sub-Saharan savannas and to the Nile Valley. In contrast, their distribution during the Quaternary included most of northern Africa, leading to the emergence of local fos…
View article: Notch Signaling Pathway in Tooth Shape Variations throughout Evolution
Notch Signaling Pathway in Tooth Shape Variations throughout Evolution Open
Evolutionary changes in vertebrates are linked to genetic alterations that often affect tooth crown shape, which is a criterion of speciation events. The Notch pathway is highly conserved between species and controls morphogenetic processe…
View article: Digging Up Convergence in Fossorial Rodents: Insights into Burrowing Activity and Morpho-Functional Specializations of the Masticatory Apparatus
Digging Up Convergence in Fossorial Rodents: Insights into Burrowing Activity and Morpho-Functional Specializations of the Masticatory Apparatus Open
View article: Incipient morphological specializations associated with fossorial life in the skull of ground squirrels (Sciuridae, Rodentia)
Incipient morphological specializations associated with fossorial life in the skull of ground squirrels (Sciuridae, Rodentia) Open
Anatomical and biological specializations have been studied extensively in fossorial rodents, especially in subterranean species, such as mole‐rats or pocket‐gophers. Sciurids (i.e., squirrels) are mostly known for their diverse locomotory…
View article: Notch signaling pathway in tooth shape variations
Notch signaling pathway in tooth shape variations Open
Evolutionary changes in vertebrates are linked to genetic alterations that often affect tooth-crown shape, which is a criterion of speciation events. The Notch pathway is highly conserved between species and controls morphogenetic processe…
View article: Evolution Towards Fossoriality and Morphological Convergence in the Skull of Spalacidae and Bathyergidae (Rodentia)
Evolution Towards Fossoriality and Morphological Convergence in the Skull of Spalacidae and Bathyergidae (Rodentia) Open
View article: Characters from the deciduous dentition and its interest for phylogenetic reconstruction in Hippopotamoidea (Cetartiodactyla: Mammalia)
Characters from the deciduous dentition and its interest for phylogenetic reconstruction in Hippopotamoidea (Cetartiodactyla: Mammalia) Open
Teeth are frequently used in phylogeny in order to better characterize the evolution of extinct mammal species. While most studies have focused on the adult dentition, the consideration of characters from the deciduous dentition could also…
View article: On the status of early Eucricetodontinae (Muroidea, Rodentia) with a special focus on the Atavocricetodon vs Eucricetodon issue: morphometrical and microstructural aspects
On the status of early Eucricetodontinae (Muroidea, Rodentia) with a special focus on the Atavocricetodon vs Eucricetodon issue: morphometrical and microstructural aspects Open
Among the flourishing Muroidea, the Eucricetodontinae constitute the most diversified subfamily of the Eurasian Palaeogene. Early representatives, such as Atavocricetodon and Eucricetodon, are notably characterized by their simple and prim…
View article: Issue information – TOC & Editorial and Subscription Page
Issue information – TOC & Editorial and Subscription Page Open
View article: Developmental origins and homologies of the hyracoid dentition
Developmental origins and homologies of the hyracoid dentition Open
Understanding the origins of morphological specializations in mammals is a key goal in evolutionary biology. It can be accomplished by studying dental homology, which is at the core of most evolutionary and developmental studies. Here, we …
View article: Evolutionary and Functional Implications of Incisor Enamel Microstructure Diversity in Notoungulata (Placentalia, Mammalia)
Evolutionary and Functional Implications of Incisor Enamel Microstructure Diversity in Notoungulata (Placentalia, Mammalia) Open
Notoungulates are an extinct clade of South American mammals, comprising a large diversity of body sizes and skeletal morphologies, and including taxa with highly specialized dentitions. The evolutionary history of notoungulates is charact…
View article: Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals
Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals Open
Studying ontogeny in both extant and extinct species can unravel the mechanisms underlying mammal diversification and specialization. Among mammalian clades, Cetartiodactyla encompass species with a wide range of adaptations, and ontogenet…
View article: Table S3 from Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals
Table S3 from Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals Open
List of ratio for mandibular (Md) size and associated data on the investigated cetartiodactyl taxa (cf figure 4).
View article: Table S1 from Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals
Table S1 from Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals Open
Details of the dental eruption sequence for each cetartiodactyl species investigated, and corresponding specimens of interest.
View article: Table S2 from Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals
Table S2 from Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals Open
List of estimated body masses for the cetartiodactyl taxa included in the parsimony reconstruction based on the phylogeny simplified from Lihoreau et al. (2015; cf figure 3).
View article: Table S2 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates
Table S2 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates Open
Stratigraphic ranges of the taxa studied.
View article: Table S1 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates
Table S1 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates Open
List of specimens and details concerning the methods of investigation.
View article: Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates
Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates Open
Understanding the mechanisms responsible for phenotypic diversification, and the associated underlying constraints and ecological factors represents a central issue in evolutionary biology. Mammals present a wide variety of sizes and shape…
View article: Table S3 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates
Table S3 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates Open
Supporting data corresponding to Procrustes coordinates
View article: Supplementary material from "Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates"
Supplementary material from "Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates" Open
Understanding the mechanisms responsible for phenotypic diversification, and the associated underlying constraints and ecological factors represents a central issue in evolutionary biology. Mammals present a wide variety of sizes and shape…
View article: Table S4 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates
Table S4 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates Open
Statistics associated with regressions.
View article: Ontogenetic variations and structural adjustments in mammals evolving prolonged to continuous dental growth
Ontogenetic variations and structural adjustments in mammals evolving prolonged to continuous dental growth Open
Studying dental ontogeny in mammals can provide valuable insight on the evolution of their masticatory apparatus and their related adaptations. The multiple acquisitions of a prolonged to continuous growth of teeth in herbivorous mammals i…
View article: Ontogenetic and life history trait changes associated with convergent ecological specializations in extinct ungulate mammals
Ontogenetic and life history trait changes associated with convergent ecological specializations in extinct ungulate mammals Open
Significance Estimating life history traits such as pace of growth or longevity is difficult in extinct mammals. Yet, these parameters could be helpful to better understand how herbivorous mammals adapted to changing environments. We here …
View article: Supp. Tab.1 from Ontogenetic variations and structural adjustments in mammals evolving prolonged to continuous dental growth
Supp. Tab.1 from Ontogenetic variations and structural adjustments in mammals evolving prolonged to continuous dental growth Open
Dental measurements in Mesotheriidae and Ctenodactylidae
View article: 3D models related to the publication: The hidden teeth of sloths: evolutionary vestiges and the development of a simplified dentition.
3D models related to the publication: The hidden teeth of sloths: evolutionary vestiges and the development of a simplified dentition. Open
International audience
View article: The hidden teeth of sloths: evolutionary vestiges and the development of a simplified dentition
The hidden teeth of sloths: evolutionary vestiges and the development of a simplified dentition Open
View article: Dental peculiarities in the silvery mole-rat: an original model for studying the evolutionary and biological origins of continuous dental generation in mammals
Dental peculiarities in the silvery mole-rat: an original model for studying the evolutionary and biological origins of continuous dental generation in mammals Open
Unravelling the evolutionary and developmental mechanisms that have impacted the mammalian dentition, since more than 200 Ma, is an intricate issue. Interestingly, a few mammal species, including the silvery mole-rat Heliophobius argenteoc…