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 …

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 …

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 …

Transitional fossils informing the origin of turtles are among the most sought-after
discoveries in palaeontology,,,,. Despite strong genomic evidence indicating that 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 …

Chelonioid turtles are the only surviving group of reptiles that secondarily evolved marine
lifestyles during the Mesozoic Early chelonioid evolution is documented by fossils of their …

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 …

We describe the skull of the Early Cretaceous (Aptian-Albian) baenid turtle Trinitichelys hiatti
using micro-computed tomography to provide new insights into the cranial anatomy of basal …

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 …