ArticleJournal of anatomy2022
Ontogenetic variation in the crocodylian vestibular system.
Article in Journal of anatomy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 24 citations in OpenAlex.
- Ontogenetic Changes in Endocranial Anatomy in Gorgosaurus libratus (Theropoda: Tyrannosauridae) Provide Insight Into the Evolution of the Tyrannosauroid Endocranium.The Journal of comparative neurology · 2025Article
- Size, not phylogeny, explains the morphology of the endosseous labyrinth in the crown clade Crocodylia.Journal of anatomy · 2025Article
- Skull sinuses precluded extinct crocodile relatives from cetacean-style deep diving as they transitioned from land to sea.Royal Society open science · 2024Article
- Increasing the impact of vertebrate scientific collections through 3D imaging: The openVertebrate (oVert) Thematic Collections Network.Bioscience · 2024Review
- Dynamic evolutionary interplay between ontogenetic skull patterning and whole-head integration.Nature ecology & evolution · 2024Article
- The neuroanatomy and pneumaticity of Hamadasuchus (Crocodylomorpha, Peirosauridae) from the Cretaceous of Morocco and its paleoecological significance for altirostral forms.Journal of anatomy · 2023Article
- Ontogenetic variability of the intertympanic sinus distinguishes lineages within Crocodylia.Journal of anatomy · 2023Article
- Neuroanatomy of the crocodylomorph Portugalosuchus azenhae from the late cretaceous of Portugal.Journal of anatomy · 2023Article
- Article
- Neuroanatomy of the mekosuchine crocodylian Trilophosuchus rackhami Willis, 1993.Journal of anatomy · 2022Article
- Ontogenetic variation in the crocodylian vestibular system.Journal of anatomy · 2022Article
- 'Ear stones' in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures.Royal Society open science · 2022Article
Corrections and comments
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Authors and funding
8 authors at 5 institutions in 3 countries.
Funding
Abstract
Crocodylians today live in tropical to subtropical environments, occupying mostly shallow waters. Their body size changes drastically during ontogeny, as do their skull dimensions and bite forces, which are associated with changes in prey preferences. Endocranial neurosensory structures have also shown to change ontogenetically, but less is known about the vestibular system of the inner ear. Here we use 30 high-resolution computed tomography (CT) scans and three-dimensional geometric morphometrics to investigate the size and shape changes of crocodylian endosseous labyrinths throughout ontogeny, across four stages (hatchling, juvenile, subadult and adult). We find two major patterns of ontogenetic change. First, the labyrinth increases in size during ontogeny, with negative allometry in relation to skull size. Second, labyrinth shape changes significantly, with hatchlings having shorter semicircular canal radii, with thicker diameters and an overall dorsoventrally shorter labyrinth than those of more mature individuals. We argue that the modification of the labyrinth during crocodylian ontogeny is related to constraints imposed by skull growth, due to fundamental changes in the crocodylian braincase during ontogeny (e.g. verticalisation of the basicranium), rather than changes in locomotion, diet, or other biological functions or behaviours.
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