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Comparative Cranial Joint Variation in Three Different Lizards: Impact of Feeding Habit.
Life (Basel)
January 2025
Department of Biology, Faculty of Science, Dokuz Eylül University, 35220 İzmir, Türkiye.
The skull structure in vertebrates is closely related to feeding mode. This study examines the relationship between the cranial joint morphology variation among different lizard species [ (Daudin, 1802), (Nordmann, 1840), and (Başoğlu & Hellmich 1968)] and their feeding habit. This study investigates the cranial anatomical correlates of distinct cranial kinesis models.
View Article and Find Full Text PDFMorphological Evolution and Extinction of Eodiscids and Agnostoid Arthropods.
Life (Basel)
December 2024
State Key Laboratory of Continental Dynamics, Shaanxi Key Laboratory of Early Life and Environments, Department of Geology, Northwest University, Xi'an 710069, China.
The temporal range of eodiscids and agnostoid arthropods overlaps with several early Paleozoic geological events of evolutionary significance. However, the responses of agnostids to these events and how the perturbations associated with them (both abiotic and/or biotic) may have impacted agnostids remain uncertain. To address this uncertainty, we employ geometric morphometrics to reconstruct morphospace occupation for agnostids, thereby elucidating their evolutionary response to geological events during the early Paleozoic.
View Article and Find Full Text PDFIntraspecific Morphometric Variation in a New Species of Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics.
Biology (Basel)
January 2025
Fish Health Division, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria.
A new species of (Ceratomyxidae, Myxosporea) was found infecting the gall bladder of the Argentine croaker Berg 1895 (Sciaenidae, Perciformes) from the Argentine sea. Using an integrative taxonomic approach that combines morphological, bioecological, and molecular analyses, we provide evidence that clearly differentiates this species from known taxa and formally describe as a new species. This study is the first to apply landmark-based geometric morphometrics (GM) in myxozoan research, providing a detailed analysis of conspecific morphometric variation of ceratomyxid myxospores, examining their natural variation within and among different ceratomyxids infecting the gall bladder of .
View Article and Find Full Text PDFIs cranial anatomy indicative of fossoriality? A case study of the mammaliaform Hadrocodium wui.
Anat Rec (Hoboken)
January 2025
School of Geography, Earth & Environmental Sciences, University of Birmingham, Birmingham, UK.
Determining the ecology of fossil species presents considerable challenges due to the often fragmentary preservation of specimens. The mammaliaform Hadrocodium wui from the Jurassic of China is known only from the cranium and mandible but may have had a fossorial lifestyle. It shares morphological similarities with talpid moles and soricid shrews and is closely related to other fossorial mammaliaforms.
View Article and Find Full Text PDFComputational simulation of cranial soft tissue expansion on the cranium during early postnatal growth in humans.
J Anat
January 2025
Department of Musculoskeletal & Ageing Science, Institute of Life Course & Medical Sciences (ILCaMS) and Human Anatomy Resource Centre (HARC), Education Directorate, University of Liverpool, Liverpool, UK.
The importance of interactions between neighbouring rapidly growing tissues of the head during development is recognised, yet this competition for space remains incompletely understood. The developing structures likely interact through a variety of mechanisms, including directly genetically programmed growth, and are mediated via physiological signalling that can be triggered by structural interactions. In this study, we aimed to investigate a different but related potential mechanism, that of simple mechanical plastic deformation of neighbouring structures of the head in response to soft tissue expansion during human postnatal ontogeny.
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