Lambeosaurinae
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Lambeosaurinae /ˌlæmbiəˈsɔːraɪniː/ is a group of crested hadrosauroid dinosaurs.
FMNH Parasaurolophus fossil
Parasaurolophus
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Parasaurolophus is a genus of hadrosaurid "duck-billed" dinosaur that lived in what is now western North America and possibly Asia during the Late Cretaceous period, about 76.5–73 million years ago. I
Lambeosaurinae
…separation of Hadrosauridae into Hadrosaurinae (rather than Trachodontinae), Saurolophinae, and Lambeosaurinae, the latter of which now also included Parasaurolophus. American paleontologists Richard Swann Lull and Nelda E. Wright published a review article of Hadrosauridae in 1942 where they supported the subfamilies…
Holotype specimen of P. walkeri, showing the pathologic v-shaped notch
Skull diagram of juvenile P. cyrtocristatus
Closeup of P. walkeri beak and teeth