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Ontogeny of the Early Triassic Cynodont Thrinaxodon liorhinus (Therapsida): Dental Morphology and Replacement
Dental replacement in the Early Triassic cynodont Thrinaxodon liorhinus is studied for the first time using micro-computed tomography (µCT) scanning techniques, with results indicating that lower postcanines are more numerous and present amore complex morphology than the upper postcanine series, even in the same individual.
Synchrotron scanning reveals the palaeoneurology of the head-butting Moschops capensis (Therapsida, Dinocephalia)
Synchrotron scanning of the tapinocephalid Moschops capensis reveals, for the first time, numerous anatomical adaptations of the central nervous system related to this combative behaviour.
Synchrotron scanning reveals amphibious ecomorphology in a new clade of bird-like dinosaurs
This lineage adds an amphibious ecomorphology to those evolved by maniraptorans: it acquired a predatory mode that relied mainly on neck hyperelongation for food procurement, it coupled the obligatory bipedalism of theropods with forelimb proportions that may support a swimming function, and it developed postural adaptations convergent with short-tailed birds.
Surface Chemical Composition of Diatoms
- B. Tesson, M. Genet, V. Fernandez, Simon Degand, P. Rouxhet, V. Martin‐Jézéquel
- Environmental ScienceChemBioChem
- 17 August 2009
XPS analysis was performed on P. tricornutum and compared with diatom Thalassiosira pseudonana; the results provide new information on the chemical composition of the cell surface.
Synchrotron Reveals Early Triassic Odd Couple: Injured Amphibian and Aestivating Therapsid Share Burrow
Synchrotron scanning of a lithified burrow cast from the Early Triassic of the Karoo unveiled a unique mixed-species association: an injured temnospondyl amphibian that sheltered in a burrow occupied by an aestivating therapsid (Thrinaxodon).
Global climate perturbations during the Permo-Triassic mass extinctions recorded by continental tetrapods from South Africa
Push and bite: trade-offs between burrowing and biting in a burrowing skink (Acontias percivali)
The data suggest that trade-offs may exist, and may have been of crucial importance in shaping the evolution of head shape in A. percivali, and burrowing lizards more generally.
Evidence of Egg Diversity in Squamate Evolution from Cretaceous Anguimorph Embryos
- V. Fernandez, E. Buffetaut, V. Suteethorn, J. Rage, P. Tafforeau, M. Kundrát
- Geography, Environmental SciencePloS one
- 15 July 2015
The first attested fossil eggs of lizards from the Early Cretaceous of Thailand are reported, combining hard eggshells with exquisitely preserved embryos of anguimoph, shedding light on an apparently rare reproduction strategy of squamates and demonstrating that the evolution of rigid-shelled eggs are not an exclusive specialization of geckoes.
Endocranial Casts of Pre-Mammalian Therapsids Reveal an Unexpected Neurological Diversity at the Deep Evolutionary Root of Mammals
This study suggests that NMT brain size falls in the upper range of the reptilian and amphibian variation, and uses micro-CT scans of the skulls of 1 Dinocephalia and 3 Biarmosuchia to enable the accurate determination of endocranial shape and size in NMT.
The cranial morphology of Tanystropheus hydroides (Tanystropheidae, Archosauromorpha) as revealed by synchrotron microtomography
A detailed description of the skull of PIMUZ T 2790, including a partial endocast and endosseous labyrinth, is provided, based on synchrotron microtomographic data, and its morphology is compared to that of other early Archosauromorpha.