(genetics). (1) (Of, or pertaining to) An allele or a gene that is expressed in an organism âs phenotype, masking the effect of the recessive allele or gene when present. (2) (Of, or pertaining to) An organism that expresses the dominant gene (or allele).
Triceratops was a species of herbivorous dinosaur. Triceratops lived during the Mesozoic Era, during the days of the late Cretaceous period. A large herbivorous dinosaur, Triceratops grazed on plants and relied on its horns and frilled head for defense, cutting away at plants with its sharp beak. were larger relatives of the Chasmosaurus. They appear in Ice Age: Dawn of the Dinosaurs, The Triceratops are shown very briefly, wading through a pond.
Protoceratops was discovered in a semi-erect stance with the Velociraptor âs right forelimb clutched between its jaws in a desperate fight for survival. Their discovery reveals a snapshot in time, of a life and death struggle, between these ancient adversaries.etailed Imagesâ. During the Polish-Mongolian paleontological expedition to the Gobi Desert of Mongolia, in 1971, an articulated Velociraptor mongoliensis skeleton was found with hands and feet grasping a Protoceratops andrewsi.