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 flat head.
This Edmontosaurus annectens is seen its hand like mitten. Its bill is like duck’s.
For caption, it is Saurolophus sp., but it would be S. angustirostris. It is very huge, so even big theropod couldn’t prey it.
Olorotitan arharensis is unique for its crest like hatchet. It has slender body and long neck as big hadrosaurid.
Juvenile Hypacrosaurus stebingeri has smaller crest than adult’s. It became bigger with growing.
Thank you for reading! Next time, I’ll write about Marginocephalian and Thyreophorian dinosaurs.
Japanese Dino-mania 