Argraffiad Saesneg gwreiddiol = Original English edition: London : Kingfisher Publications, 2004.
Addasiad Cymraeg gan = Welsh adaptation by : Elin Meek.
Yn cynnwys mynegai = Includes index.
Byd deinosoriaid by M. J. Benton. ISBN 9781843236344. Published by Gwasg Gomer in 2006. Publication and catalogue information, links to buy online and reader comments.