The evolution of vertebral fusion is a poorly understood phenomenon that results in the loss
of mobility between sequential vertebrae. Non‐pathological fusion of the anterior cervical …

We present a new medium-sized basal sauropodomorph, S efapanosaurus zastronensis
gen. et sp. nov., from the Upper Triassic− Lower Jurassic Elliot Formation of South Africa. It is …

A new styracosternan ornithopod genus and species is described based on the right dentary
of a single specimen from the Mirambell Formation (Early Cretaceous, early Barremian) at …

Background The horns and frill of Triceratops and other ceratopsids (horned dinosaurs) are
interpreted variously as display structures or as weapons against conspecifics and …

This study reports on a new ceratopsid, Spiclypeus shipporum gen et sp. nov., from the
lower Coal Ridge Member of the Judith River Formation in Montana, USA, which dates to …

Adult large-bodied theropods are often found with numerous pathologies. A large, almost
complete, probably adult Allosaurus specimen from the Howe Stephens Quarry, Morrison …

Studies on pathological fossil bones have allowed improving the knowledge of physiology
and ecology, and consequently the life history of extinct organisms. Among extinct …

Background A frontoparietal dome of a large pachycephalosaurid collected from the Upper
Cretaceous Hell Creek Formation in 2001 is identified as Pachycephalosaurus …

Literature concerning dinosaur footprints or trackways exhibiting abnormal gait or
morphology reflecting pathology (ichnopathology) is rare. We report on a number of Jurassic …

Paleopathological diagnoses provide key information on the macroevolutionary origin of
disease as well as behavioral and physiological inferences that are inaccessible via direct …