(1997) "Dinosaurs of the Flaming Cliffs" Anchor, New York, ISBN 978-0-385-47775-8* Novacek, Michael J.; Norell, Mark; McKenna, Malcolm C. and Clark, James (2004) "Fossils of the Flaming Cliffs" "Dinosaurs and other Monsters" (special edition of "Scientific American" 14(2):) Scientific American, New York,
(Die neue Brehm-Bücherei 432)== Literatura ==* Carpenter, Kenneth (1999) "Eggs, nests, and baby dinosaurs: a look at dinosaur reproduction" Indiana University Press, Bloomington, Indiana, ISBN 978-0-253-33497-8* Colbert, Edwin Harris (1984) "The great dinosaur hunters and their discoveries" Dover, New York, ISBN 978-0-486-24701-4* Novacek, Michael J.