Results 61 to 70 of about 929 (163)
Phylogenomic analyses support the position of turtles as the sister group of birds and crocodiles (Archosauria) [PDF]
BMC Biology, 2012 The morphological peculiarities of turtles have, for a long time, impeded their accurate placement in the phylogeny of amniotes. Molecular data used to address this major evolutionary question have so far been limited to a handful of markers and/or taxa. These studies have supported conflicting topologies, positioning turtles as either the sister group
Chiari Y, Cahais V, Galtier N, Delsuc F.
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Extreme convergence in the body plans of an early suchian (Archosauria) and ornithomimid dinosaurs (Theropoda) [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2006 Living archosaurs comprise birds (dinosaurs) and crocodylians (suchians). The morphological diversity of birds and stem group dinosaurs is tremendous and well-documented. Suchia, the archosaurian group including crocodylians, is generally considered more conservative.
Sterling J, Nesbitt, Mark A, Norell
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Protein Science, Volume 35, Issue 5, May 2026.Abstract Prestin, a member of the SLC26A family, is essential for the electromotility of mammalian outer hair cells, converting voltage changes into mechanical work. In contrast, nonmammalian orthologues function as anion transporters. To investigate the molecular and structural basis of this functional divergence, we performed ancestral sequence ...
Nicolás Fuentes‐Ugarte +6 more
wiley +1 more source
The skull anatomy and cranial endocast of the pseudosuchid archosaur Prestosuchus chiniquensis from the Triassic of Brazil [PDF]
Acta Palaeontologica Polonica, 2019 Prestosuchus chiniquensis is the most famous “rauisuchian” described by Friedrich von Huene, eight decades ago, and several specimens have been assigned to this taxon since then. In the present contribution, we provide the first detailed description of a
Bianca Martins Mastrantonio +3 more
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Papers in Palaeontology, Volume 12, Issue 3, May/June 2026.Abstract Dysalotosaurus lettowvorbecki (Ornithopoda, Dinosauria) is a small‐sized dryosaurid iguanodontian known from various isolated remains collected from the Tendaguru Formation (Upper Jurassic, Tanzania). Micro‐computed tomography of a small individual encased in a block offered a unique opportunity to describe c.
Riccardo Rocchi +3 more
wiley +1 more source
A bird-like skull in a Triassic diapsid reptile increases heterogeneity of the morphological and phylogenetic radiation of Diapsida [PDF]
Royal Society Open Science, 2017 The Triassic Period saw the first appearance of numerous amniote lineages (e.g. Lepidosauria, Archosauria, Mammalia) that defined Mesozoic ecosystems following the end Permian Mass Extinction, as well as the first major morphological diversification of ...
Adam C. Pritchard, Sterling J. Nesbitt
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Palaeontology, Volume 69, Issue 3, 2026.Abstract Notosuchian crocodylomorphs were predominantly active terrestrial predators, exhibiting a wide range of ecomorphological specializations and body sizes. Given that body size plays an important role in the life history of vertebrates, its accurate estimation for notosuchians is crucial for understanding macroevolutionary and macroecological ...
Ana Laura S. Paiva +4 more
wiley +1 more source
Palaeontology, Volume 69, Issue 3, 2026.Abstract Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina in the rostral bones, similar to extant lepidosaurs; vertically projected teeth; uniform enamel thickness in maxillary teeth; and an allometric ...
Rafael Terras +9 more
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The Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae +4 more
wiley +1 more source
New perspectives on head and neck allometry and ecomorphology in tetrapods
Biological Reviews, Volume 101, Issue 2, Page 665-694, April 2026.ABSTRACT The skull and neck are vital parts of the body, influencing feeding ecology, habitat exploitation and locomotion. Numerous studies have therefore sought to understand how the size of these segments vary with ecology and scale with overall body size.
Alice E. Maher +4 more
wiley +1 more source