What is a palimdron?

When the scardox aliens have babies what do the babies eat? What evidence suggests that a mass extinction of the dinosaurs occurred at the end of the cretaceous? What animal group does the dinosaurs of Mesozoics era belong to? Who is the girl in G-Dragon-Breath? What dragon's egg is blue with a lightning bolt on it in DragonVale? What is duncan placenta? Did the recent stone age make dinosaurs extinct? What dinosaurs lived in Delaware? Did St. George kill a real dragon? What were spinosaurus spines for? Were dinosaurs alive 100 years ago? What do triceratop horns do? What does the 'saurus' part of Tyrannosaurus rex mean? What does the name triceratops mean? What are 3 symbols used in the story of creation? What period did the Utahraptor live in? How is shivering related to homeostasis? What unique adaptaions helped the velociraptor survive in its habitat? What did Darwin wonder about the finches and tortoises? Is this a valid hypotheses - dinosaurs became extinct because mammals ate all the dinosaur eggs?