I’m sorry to be late.Today, I’ll write about ornithopods. Iguanodon bernissartensis is unique for its big thumb like spike. It might be used as weapon. Mantellisaurus atherfieldensis is relative to Iguanodon, but it is smaller and has smaller arms and thumbs. Ouranosaurus nigeriensis has great sail. It is also relative to Iguanodon, but it has …
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Japanese Dino-mania 