Bernard Battail

Un nouveau genre de dinosaure sauropode de la formation des Grès supérieurs (Aptien-Albien) du Laos

The partly-articulated postcranial remains of two sauropod skeletons recently found in Tang Vay (Savannakhet Province, Laos) are assigned to the species Tangvayosaurus hoffeti (nov. gen., nov. sp.). The derived characters present in the new material confirm the presence of titanosaurs in South East Asia at the end of the Early Cretaceous, but are not consistent with its placement within Titanosaurus genus as first done by Hoffet in 1942. All of the material relative to this species is therefore referred to a new genus: Tangvayosaurus. Tangvayosaurus and the Thai genus Phuwiangosaurus have strong affinities and are considered as primitive titanosaurs.

Late Permian dicynodont fauna from Laos

Abstract In Laos, dicynodonts have long been known only from one specimen, now lost, a partial skull discovered by Counillon in the purple beds of the area of Luang Prabang, and initially described by Repelin as Dicynodon incisivum. Subsequent researchers attributed the specimen either to the Late Permian genus Dicynodon or to the Early Triassic genus Lystrosaurus. Recent Franco-Laotian expeditions have gathered, from the same purple beds, a collection of tetrapods composed mainly of dicynodonts. They can all be ascribed to Dicynodon, and the available evidence suggests that the purple beds are Late Permian in age. The genus Lystrosaurus remains unknown in Laos.

New ornithischian remains from the Upper Elliot Formation (lower jurassic) of lesotho and stratigraphical distribution of southern African fabrosaurids

Unpublished postcranial dinosaur material from the Upper Elliot Formation (Hettangian) of Likhoele Mountain (Mafeteng district, Lesotho) is described. The bone assemblage includes elements from both the axial (centra) and appendicular (ilium, femora, tibiae, fibula) skeleton, from, at least, three individuals. Although being clearly ornithischian, the specimens do not belong to heterodontosaurids. They rather appear close to Lesothosaurus diagnosticus. The stratigraphical distribution of southern African fabrosaurids is also discussed on the basis of both the skeletal and ichnological record.

Les genres Dicynodon et Lystrosaurus (Therapsida, Dicynodontia) en Eurasie: Une mise au point

Abstract The present paper is a review of the Eurasian species which can be attributed to the genera Dicynodon and Lystrosaurus (Therapsida: Dicynodontia). The genus Dicynodon is represented in Scotland, in Russia (Russian platform) and in China (Xinjiang); it is now known for sure from Laos. The genus Lystrosaurus is represented in India, in Russia (Russian platform) and in China (Xinjiang). The presence of Dicynodon in Laos implies necessarily a land connection between the Indochina block and Pangaea during the Late Permian. The probable existence of Lystrosaurus species which are represented both in Gondwanaland (South Africa, India and Antarctica) and in Xinjiang suggests the hypothesis of a terrestrial route situated East of the Tethys during the Early Triassic.