Paleontologists Find Rare Fossil of Young Dinosaur Parasaurolophus - Sci News. This image shows adult and baby Parasaurolophus: both heads are to scale; note that the baby lacks the big crest seen in the adult.
"An artist's representation of Leonardo, a well-preserved fossil of a 77 million-year-old duckbilled dinosaur. Credit: Houston Museum of Natural Science." Brachylophosaurus canadensis Dinosaur Spills His Guts
Mercuriceratops by Olorotitan on DeviantArt : Scientific classification e Kingdom: Animalia Phylum: Chordata Clade: Dinosauria Order: †Ornithischia Family: †Ceratopsidae Subfamily: †Chasmosaurinae Genus: †Mercuriceratops Ryan et al.