Maiasaura Vertebra - SOLD 1.91" Fossil with Stand carboniferousplant Assessments of progressive changes in

Assessments of progressive changes in horn orientation and shape during adolescence indicate the possible visual identification of juveniles

amethyst has an explosive origin

JURASSIC TREE

Black & Silver - Primarily Black

Maiasaura Vertebra - SOLD 1.91" Fossil with Stand carboniferousplant Assessments of progressive changes inMaiasaura was a large Ornithischian dinosaur from the Cretaceous Period. Related to Iguanodons, they are known primarily for nurturing their young past hatching, a behavior previously unknown of any dinosaur. The Maiasaura and its Hadrosaur cousins had specialized "duck bills" for mouths. These were in fact elongated rostral bone structures that gave the appearance of a beak, but actually housed hundreds of small teeth to grind through all manner of