It had a toothless beak adapted for an omnivorous diet

although frequently lowering its head during feeding

Recent paleopathological studies also suggest that tail structures and osteoderms may be linked not only to defensive responses to predators

These fossils provide invaluable information about the diversity and evolution of pterosaurs during the Late Jurassic

Hovasaurus boulei Embolotherium It had a toothless beakHovasaurus boulei was an extinct diapsid reptile from the Late Permian and possibly part of the Early Triassic , known primarily from its fossil remains in Madagascar , especially in the Dzulfian Sakamena Formation (approximately 252247 million years old) , which spans the Permian Triassic boundary. It is one of the most specialized representatives of the tangasaurids , a primitive group of sauropsids that adapted to an aquatic lifestyle shortly after