ArticleRoyal Society open science2017
A bird-like skull in a Triassic diapsid reptile increases heterogeneity of the morphological and phylogenetic radiation of Diapsida.
Article in Royal Society open science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Article
- Cranial osteology and neuroanatomy of the late Permian reptileRoyal Society open science · 2025Article
- Highlighting chromosomal rearrangements of five species of Galliformes (Domestic fowl, Common and Japanese quail, Barbary and Chukar partridge) and the Houbara bustard, an endangered Otidiformes: banding cytogenetic is a powerful tool.Comparative cytogenetics · 2024Article
- The affinities of the Late TriassicRoyal Society open science · 2023Article
- Reptile Evolution and Genetics: An Overview.Animals : an open access journal from MDPI · 2023Article
- Dinosaurs: Comparative Cytogenomics of Their Reptile Cousins and Avian Descendants.Animals : an open access journal from MDPI · 2022Review
- Regionalization, constraints, and the ancestral ossification patterns in the vertebral column of amniotes.Scientific reports · 2022Article
- Re-description of the early Triassic diapsid Palacrodon from the lower Fremouw formation of Antarctica.Journal of anatomy · 2022Article
- A reassessment of the enigmatic diapsidProceedings. Biological sciences · 2021Article
- Article
- Article
- A tiny Triassic saurian from Connecticut and the early evolution of the diapsid feeding apparatus.Nature communications · 2018Article
- Noise and biases in genomic data may underlie radically different hypotheses for the position of Iguania within Squamata.PloS one · 2018Article
- A bird-like skull in a Triassic diapsid reptile increases heterogeneity of the morphological and phylogenetic radiation of Diapsida.Royal Society open science · 2017Article
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2 authors.
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Abstract
The Triassic Period saw the first appearance of numerous amniote lineages (e.g. Lepidosauria, Archosauria, Mammalia) that defined Mesozoic ecosystems following the end Permian Mass Extinction, as well as the first major morphological diversification of crown-group reptiles. Unfortunately, much of our understanding of this event comes from the record of large-bodied reptiles (total body length > 1 m). Here we present a new species of drepanosaurid (small-bodied, chameleon-like diapsids) from the Upper Triassic Chinle Formation of New Mexico. Using reconstructions of micro-computed tomography data, we reveal the three-dimensional skull osteology of this clade for the first time. The skull presents many archaic anatomical traits unknown in Triassic crown-group reptiles (e.g. absence of bony support for the external ear), whereas other traits (e.g. toothless rostrum, anteriorly directed orbits, inflated endocranium) resemble derived avian theropods. A phylogenetic analysis of Permo-Triassic diapsids supports the hypothesis that drepanosaurs are an archaic lineage that originated in the Permian, far removed from crown-group Reptilia. The phylogenetic position of drepanosaurids indicates the presence of archaic Permian clades among Triassic small reptile assemblages and that morphological convergence produced a remarkably bird-like skull nearly 100 Myr before one is known to have emerged in Theropoda.
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