The histology of rhynchosaur (Diapsida, Archosauromorpha) ankylothecodonty. [PDF]
AbstractThe study of the connection between the teeth and the jaw is important for understanding the palaeobiology of vertebrates, but inconsistent terminology and incomplete sampling have made it difficult to assess the evolutionary significance of some of the related characters.
Mestriner G +7 more
europepmc +4 more sources
Growth patterns and life-history strategies in Placodontia (Diapsida: Sauropterygia) [PDF]
Placodontia is a clade of durophagous, near shore marine reptiles from Triassic sediments of modern-day Europe, Middle East and China. Although much is known about their primary anatomy and palaeoecology, relatively little has been published regarding ...
Nicole Klein +3 more
doaj +9 more sources
El registro fósil de plesiosaurios (Diapsida, Sauropterygia) en el Perú
Se realiza un recuento de los registros de plesiosaurios de Perú y se describe material referido a plesiosauria depositado en el Museo de Historia Natural de la UNMSM.El registro de plesiosaurios de Perú se extiende entre el Valanginiano-Hauteriviano ...
Ivan Meza-Velez, José O'Gorman
doaj +4 more sources
Systematics of putative euparkeriids (Diapsida: Archosauriformes) from the Triassic of China [PDF]
The South African species Euparkeria capensis is of great importance for understanding the early radiation of archosauromorphs (including archosaurs) following the Permo–Triassic mass extinction, as most phylogenetic analyses place it as the sister taxon
Roland B. Sookias +3 more
doaj +5 more sources
A new archosauriform (Reptilia: Diapsida) from the Manda beds (Middle Triassic) of southwestern Tanzania. [PDF]
BackgroundArchosauria and their closest relatives, the non-archosaurian archosauriforms, diversified in the Early and Middle Triassic, soon after the end-Permian extinction. This diversification is poorly documented in most Lower and Middle Triassic rock
Sterling J Nesbitt +2 more
doaj +4 more sources
A new stem saurian reptile from the late Permian of South Africa and insights into saurian evolution [PDF]
The evolutionary radiation of diapsid reptiles that includes all extant and most extinct reptiles is well-represented in the Mesozoic and Cenozoic fossil records, however, the earliest stages recorded in the Paleozoic Era are limited to comparatively few
Ethan Dean Mooney +2 more
doaj +2 more sources
A new sphenodontian (Diapsida: Lepidosauria) from the Upper Triassic (Norian) of Germany and its implications for the mode of sphenodontian evolution [PDF]
The Arnstadt Formation of Saxony-Anhalt, Germany has yielded some of Germany’s most substantial finds of Late Triassic tetrapods, including the sauropodomorph Plateosaurus and the stem-turtle Proganochelys quenstedti. Here, we describe an almost complete
Lisa S. Freisem +3 more
doaj +2 more sources
Trifold origin of the reptilian ear ossicle and its relation to the evolutionary modification of the temporal skull region. [PDF]
The columella‐complex in reptile middle ears involves the footplate, columella shaft, and extracolumella. The latter is partly of quadrate developmental origin, whereas the footplate derives from the mesodermal otic capsule, the shaft and another part of the extracolumella from the hyoid arch.
Werneburg I, Bronzati M.
europepmc +2 more sources
The holotype of the basal archosauromorph Prolacerta broomi revisited [PDF]
Prolacerta broomi is one of the most important of fossil reptiles. First considered as one of the earliest members of squamates, this basal archosauromorph has been used as a model for diapsid morphological evolution ever since its discovery, playing ...
GABRIELA SOBRAL
doaj +1 more source
The evolution of muscle spindles. [PDF]
Abstract Muscle spindles are stretch‐sensitive mechanoreceptors found in the skeletal muscles of most four‐limbed vertebrates. They are unique amongst sensory receptors in the ability to regulate their sensitivity by contraction of the intrafusal muscle fibres on which the sensory endings lie.
Banks RW, Proske U.
europepmc +2 more sources

