Arkhandus said:Ankylosaurus.
http://www.enchantedlearning.com/subjects/dinosaurs/dinos/Ankylosaurus.html
It's bigger than an elephant I think, but close enough maybe. Just remember that so far no one's actually used historical dinosaur names for any of Eyros' giant lizards (well, no one's bothered to come up with an alternate name for Vildaxaranthus' type as a tyrannosaur, but whatever).

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Rulebook featuring "high magic" options, including a host of new spells.