Stegosaurus skull Posters Salteraster was a large and

Salteraster was a large and rare type of starfish that lived on shallow sea floors

the earliest species

dated to around 228 million years ago

Other animals sometimes put in this phylum are Yorgia

the formation where they were found and the lack of another dinosaur of a similar size from the same time and location as the eggs

Stegosaurus skull Posters Salteraster was a large andNamed Stegosaurus, or roof lizard for it's large, flat dorsal plates, this herbivorous dinosaur is a classic favorite. Scientists debate the purpose of those trademark plates, but many suggest they were used to regulate heat. Filled with blood vessels, the plates could quickly warm the big plant eater when faced towards the sun. The original fossil skull was found in the Cleveland Lloyd Quarry of Utah. Stegosaurus was a large herbivore with two rows