Turtles (Testudinata) are the clade of amniotes characterized by a complete turtle shell. New
insights into the phylogeny of the group have revealed that a diverse assemblage of fossil …

A beautifully preserved skull from the Barremian Wessex Formation of the Isle of Wight,
England, represents the first known skull of a European solemydid turtle and is referred to …

The labyrinth of the vertebrate inner ear is a sensory system that governs the perception of
head rotations. Central hypotheses predict that labyrinth shape and size are related to …

Evolutionary transitions to marine habitats occurred frequently among Mesozoic reptiles.
Only one such clade survives to the present: sea turtles (Chelonioidea). Other marine turtles …

Turtles are relatively species-poor, but anatomically very distinct from other reptiles, which
yields longstanding debates about their origin among amniotes. On the other hand, an …

Background Most turtles from the Middle and Late Jurassic of Asia are referred to the newly
defined clade Xinjiangchelyidae, a group of mostly shell-based, generalized, small to mid …

Recent discoveries from the Late Triassic and Middle Jurassic have significantly improved
the fossil record of early turtles. These new forms offer a unique opportunity to test the …

Background Sea turtles (Chelonoidea) are a charismatic group of marine reptiles that
occupy a range of important ecological roles. However, the diversity and evolution of their …

The cranial circulation and innervation systems of turtles have been studied for more than
two centuries and extensively used to understand turtle systematics. Although a significant …

Until now the Doswelliidae was considered a monospecific family including Doswellia
kaltenbachi from the Late Triassic of North America. The phylogenetic position of this taxon …