ArticlePeerJ2014
Three dimensional digital reconstruction of the jaw adductor musculature of the extinct marsupial giant Diprotodon optatum.
Article in PeerJ, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Divergent strategies in cranial biomechanics and feeding ecology of the ankylosaurian dinosaurs.Scientific reports · 2023Article
- Description of the Pliocene marsupialRoyal Society open science · 2023Article
- Three-dimensional polygonal muscle modelling and line of action estimation in living and extinct taxa.Scientific reports · 2022Article
- Evolutionary biomechanics: hard tissues and soft evidence?Proceedings. Biological sciences · 2021Article
- Botulinum toxin A injection into the anterior belly of the digastric muscle increased the posterior width of the maxillary arch in developing rats.Maxillofacial plastic and reconstructive surgery · 2019Article
- Digital dissection of the head of the rock dove (Zoological letters · 2019Article
- Article
- Seasonal migration of marsupial megafauna in Pleistocene Sahul (Australia-New Guinea).Proceedings. Biological sciences · 2017Article
- Cranial biomechanics, bite force and function of the endocranial sinuses in Diprotodon optatum, the largest known marsupial.Journal of anatomy · 2016Article
- Estimating cranial musculoskeletal constraints in theropod dinosaurs.Royal Society open science · 2015Article
- Article
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Authors and funding
1 author.
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Abstract
The morphology and arrangement of the jaw adductor muscles in vertebrates reflects masticatory style and feeding processes, diet and ecology. However, gross muscle anatomy is rarely preserved in fossils and is, therefore, heavily dependent on reconstructions. An undeformed skull of the extinct marsupial, Diprotodon optatum, recovered from Pleistocene sediments at Bacchus Marsh in Victoria, represents the most complete and best preserved specimen of the species offering a unique opportunity to investigate functional anatomy. Computed tomography (CT) scans and digital reconstructions make it possible to visualise internal cranial anatomy and predict location and morphology of soft tissues, including muscles. This study resulted in a 3D digital reconstruction of the jaw adductor musculature of Diprotodon, revealing that the arrangement of muscles is similar to that of kangaroos and that the muscle actions were predominantly vertical. 3D digital muscle reconstructions provide considerable advantages over 2D reconstructions for the visualisation of the spatial arrangement of the individual muscles and the measurement of muscle properties (length, force vectors and volume). Such digital models can further be used to estimate muscle loads and attachment sites for biomechanical analyses.
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