ArticleJournal of anatomy2015
Jaw myology and bite force of the monk parakeet (Aves, Psittaciformes).
Article in Journal of anatomy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 47 citations in OpenAlex.
- Variation in parrot jaw musculature.Anatomical record (Hoboken, N.J. : 2007) · 2026Article
- Beak height and nest structure shape avian bite force.Zoological research · 2026Article
- Fit for purpose? Analysis of the relationship between skull, beak shape and feeding ecology in Psittaciformes.Journal of anatomy · 2026Article
- Osteology of the Feeding Apparatus of Chilean Flamingo Phoenicopterus chilensis (Aves: Phoenicopteridae).Journal of morphology · 2026Article
- Estimated and in vivo measurements of bite force demonstrate exceptionally large bite forces in parrots (Psittaciformes).Journal of anatomy · 2025Article
- Sexual differences in bite force are not related to testosterone level in the wild-derived red junglefowl.Current zoology · 2025Article
- Beakiation: how a novel parrot gait expands the locomotor repertoire of living birds.Royal Society open science · 2024Article
- Quantitative investigation of pengornithid enantiornithine diet reveals macrocarnivorous ecology evolved in birds by Early Cretaceous.iScience · 2023Article
- Overcoming a 'forbidden phenotype': the parrot's head supports, propels and powers tripedal locomotion.Proceedings. Biological sciences · 2022Article
- Diet of Mesozoic toothed birds (Longipterygidae) inferred from quantitative analysis of extant avian diet proxies.BMC biology · 2022Article
- Cranial muscle reconstructions quantify adaptation for high bite forces in Oviraptorosauria.Scientific reports · 2022Article
- Craniofacial tendon development-Characterization of extracellular matrix morphology and spatiotemporal protein distribution.Frontiers in cell and developmental biology · 2022Article
- Endocranial morphology of the piciformes (Aves, Coraciimorphae): Functional and ecological implications.Journal of anatomy · 2021Article
- Identifying Initiation and Aging of Hens During the Laying Period by Raman Analysis of Beaks.The journal of poultry science · 2019Article
- The multifactorial nature of beak and skull shape evolution in parrots and cockatoos (Psittaciformes).BMC evolutionary biology · 2019Article
- Digital dissection of the head of the rock dove (Zoological letters · 2019Article
- Functional anatomy of a giant toothless mandible from a bird-like dinosaur: Gigantoraptor and the evolution of the oviraptorosaurian jaw.Scientific reports · 2017Article
- Comparative brain morphology of Neotropical parrots (Aves, Psittaciformes) inferred from virtual 3D endocasts.Journal of anatomy · 2016Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Psittaciform birds exhibit novelties in jaw bone structure and musculature that are associated with strong bite forces. These features include an ossified arcus suborbitalis and the muscles ethmomandibularis and pseudomasseter. We analyse the jaw musculature of the monk parakeet (Myiopsitta monachus) to enable future studies aimed at understanding craniofacial development, morphology, function and evolution. We estimate bite force based on muscle dissections, physiological cross-sectional area and skull biomechanical modelling. We also compare our results with available data for other birds and traced the evolutionary origin of the three novel diagnostic traits. Our results indicate that, in Myiopsitta, (i) the arcus suborbitalis is absent and the orbit is ventrally closed by an elongate processus orbitalis and a short ligamentum suborbitale; (ii) the ethmomandibularis muscle is a conspicuous muscle with two bellies, with its origin on the anterior portion of the septum interorbitale and insertion on the medial aspect of the mandible; (iii) the pseudomasseter muscle consists of some fibers arising from the m. adductor mandibulae externus superficialis, covering the lateral surface of the arcus jugalis and attaches by an aponeurotic sheet on the processus orbitalis; (iv) a well-developed adductor mandibulae complex is present; (v) the bite force estimation relative to body mass is higher than that calculated for other non-psittaciform species; and (vi) character evolution analysis revealed that the absence of the arcus suborbitalis and the presence of the m. pseudomassseter are the ancestral conditions, and mapping is inconclusive about presence of one or two bellies of the m. ethmomandibularis.
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