Mamenchisauridae

† Nanhsiungoolithus nui is a second Chinese Late Cretaceous egg oospecies with similar elongated morphology. These elongate eggs are likely attributable to oviraptorid dinosaurs, which are known to brood clutches of elongate eggs in many Chinese Cretaceous sites.

Diet & Feeding

Herbivore

Mamenchisauridae was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Jurassic Middle Mesozoic Era

Mamenchisauridae lived during the Jurassic Middle period of the Mesozoic Era, approximately 174.7 to 161.5 million years ago.

Dinosaur diversity continued to increase, with the evolution of large sauropods and diverse theropods. Stegosaurs first appeared, and the supercontinent Pangaea was breaking apart.