ArticleCommunications biology2020
Birds have peramorphic skulls, too: anatomical network analyses reveal oppositional heterochronies in avian skull evolution.
Article in Communications biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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19 citing papers in PubMed.
- Trophic ecology outweighed intrinsic constraints in shaping skull evolution of carnivorous Permian synapsids.Communications biology · 2026Article
- Structural Equation Modeling Reveals How Allometry Shapes Integration in Avian Cranial Evolution.Integrative and comparative biology · 2026Article
- Topological and variational modularity: A case study using the pectoral girdle across the Chrosomus eos-neogaeus hybridization complex.Anatomical record (Hoboken, N.J. : 2007) · 2026Article
- Mandibular morphology clarifies phylogenetic relationships near the origin of crown birds.BMC ecology and evolution · 2025Article
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- Estimated and in vivo measurements of bite force demonstrate exceptionally large bite forces in parrots (Psittaciformes).Journal of anatomy · 2025Article
- Growing with dinosaurs: a review of dinosaur reproduction and ontogeny.Biology letters · 2025Review
- Structure, Properties and Degradation of Self-Assembled Fibrinogen Nanofiber Scaffolds.ACS applied bio materials · 2024Article
- Endocranial development in non-avian dinosaurs reveals an ontogenetic brain trajectory distinct from extant archosaurs.Nature communications · 2024Article
- Dynamic evolutionary interplay between ontogenetic skull patterning and whole-head integration.Nature ecology & evolution · 2024Article
- Article
- Early tetrapod cranial evolution is characterized by increased complexity, constraint, and an offset from fin-limb evolution.Science advances · 2022Article
- Anatomical network analyses reveal evolutionary integration and modularity in the lizards skull.Scientific reports · 2022Article
- Convergence, divergence, and macroevolutionary constraint as revealed by anatomical network analysis of the squamate skull, with an emphasis on snakes.Scientific reports · 2022Article
- Novel neuroanatomical integration and scaling define avian brain shape evolution and development.eLife · 2021Article
- Cretaceous bird with dinosaur skull sheds light on avian cranial evolution.Nature communications · 2021Article
- A node-based informed modularity strategy to identify organizational modules in anatomical networks.Biology open · 2020Article
- Evolutionary and ontogenetic changes of the anatomical organization and modularity in the skull of archosaurs.Scientific reports · 2020Article
- The craniomandibular anatomy of the early archosauriformRoyal Society open science · 2020Article
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2 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In contrast to the vast majority of reptiles, the skulls of adult crown birds are characterized by a high degree of integration due to bone fusion, e.g., an ontogenetic event generating a net reduction in the number of bones. To understand this process in an evolutionary context, we investigate postnatal ontogenetic changes in the skulls of crown bird and non-avian theropods using anatomical network analysis (AnNA). Due to the greater number of bones and bone contacts, early juvenile crown birds have less integrated skulls, resembling their non-avian theropod ancestors, including Archaeopteryx lithographica and Ichthyornis dispars. Phylogenetic comparisons indicate that skull bone fusion and the resulting modular integration represent a peramorphosis (developmental exaggeration of the ancestral adult trait) that evolved late during avialan evolution, at the origin of crown-birds. Succeeding the general paedomorphic shape trend, the occurrence of an additional peramorphosis reflects the mosaic complexity of the avian skull evolution.
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