Iguanodons, Iguanodons everywhere? New genera once placed in Iguanodon * Since its first discovery made in the first decades of the XIX Century, Iguanodon remains have been found everywhere from Africa to Mongolia, Europe and North America. Chased By Dinosaurs added some sorta iguanodons even in South American settings - even though some iguanodontians are known from South America, they were much smaller. Science Marches On however, and now many of these Iguanodon species have been reclassified in other genera. Several from Europe have been created as an homage to some of the greatest XIX century paleontologists (at the time, dinosaur remains were mainly from Iguanodons). So we have Mantellisaurus from Gideon Mantell (Iguanodon’s Trope Namer); Owenodon from Richard Owen (dinosaurs’ Trope