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 …

Turtles have a highly modified body plan, including a rigid shell that constrains postcranial
anatomy. Skull morphology and neck mobility may therefore be key to ecological …

Abstract Middle Jurassic to Early Cretaceous sediments exposed in the Junggar Basin have
yielded a rich turtle assemblage. Jurassic taxa include the purportedly basal turtle …

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 …

Turtles have been known since the Upper Triassic (210 Myr old); however, fossils recording
the first steps of turtle evolution are scarce and often fragmentary. As a consequence, one of …

Turtles have the unparalleled ability to retract their heads and necks within their shell but
little is known about the evolution of this trait. Extensive analysis of neck mobility in turtles …

ABSTRACT A complete description of the xinjiangchelyid turtles Annemys levensis and A.
latiens is provided, based on all available material from the Upper Jurassic type locality of …

The fossil record of solemydid turtles is primarily based on isolated fragments collected from
Late Jurassic to Late Cretaceous sediments throughout North America and Europe and little …

Rich tetrapod ichnofaunas, known for more than a decade, from the Huangyangquan
Reservoir (Wuerhe District, Karamay City, Xinjiang) have been an abundant source of some …

A recently discovered Norian outcrop in Poręba, Poland, has yielded numerous well-
preserved turtle remains. These, together with historical materials from Germany, enabled …