The fossilized skull of a small extinct amphisbaenian referable to Rhineura hatcherii Baur is
described from high‐resolution X‐ray computed tomographic (HRXCT) imagery of a well …

We here describe the endocranial cast of the Eocene archaic ungulate Hyopsodus lepidus
AMNH 143783 (Bridgerian, North America) reconstructed from X-ray computed …

Dyrosaurids were highly specialized, largely marine, relatives of living crocodylians, and
one of the few archosaur lineages to survive the K-Pg extinction. Dyrosaurids lived during …

The mammalian brain is very distinctive for its large relative size, enlarged olfactory bulbs,
and layered isocortex. These defining traits likely evolved in the non-mammalian …

Dicynodontia represent the most diverse tetrapod group during the Late Permian. They
survived the Permo-Triassic extinction and are central to understanding Permo-Triassic …

We examined the brain architecture in different species of Chaetognatha using
immunofluorescence methods with a set of nervous system markers and confocal laser …

Lepidosaurs include lizards, snakes, amphisbaenians and the tuatara, comprising a highly
speciose evolutionary radiation with widely varying anatomical traits. Their stem-lineage …

Expansion of the brain is a key feature of primate evolution. The fossil record, although
incomplete, allows a partial reconstruction of changes in primate brain size and morphology …

Among the extant vertebrates, nonavian reptiles are probably those that are most closely
related to the first animals to evolve a clearly layered cerebral cortex. Thus, a good …

Plesiorycteropus (Malagasy aardvarks) is the sole genus belonging to an extinct mammalian
order, the Bibymalagasia, that lived in Madagascar in the Quaternary. Its systematic and …