Massospondylus carinatus Skull Fossil Cast Archaeopteryx is formed by the fusion

is formed by the fusion of two collarbones at the sternum

Order: Carnivora

Aegyptopithecus is an early fossil catarrhine that predates the divergence between hominoids and cercopithecids

This pair of triceratops horns come from the quadruped plant-eater of the late Cretaceous of North America

Massospondylus carinatus Skull Fossil Cast Archaeopteryx is formed by the fusionMassospondylus carinatus Skull Fossil Cast Replica. Massospondylus (from Greek, (massn, "longer") and (spondylos, "vertebra")) was a genus of sauropodomorph dinosaur from the Early Jurassic (Hettangian to Pliensbachian ages). It was described by Sir Richard Owen in 1854 from remains discovered in South Africa, and is thus one of the first dinosaurs to have been named. Fossils have since been found at other locations in South Africa, Lesotho, and