Reptilia - Dinosauria - Hadrosauridae

Full reference: H. G. Seeley. 1883. On the dorsal region of the vertebral column of a new dinosaur (indicating a new genus, Sphenospondylus), from the Wealden of brook in the Isle of Wight, preserved in the Woodwardian Museum of the University of Cambridge. Quarterly Journal of the Geological Society of London 39:55-61

Parent taxon: Hadrosauridae according to B. F. Nopcsa 1900

Sister taxa: Edmontosaurinae, Euhadrosauria, Gryposaurinae, Hadrosaurinae, Hadrosauropodus, Hadrosaurus, Lambeosaurinae, Lapampasaurus, Maiasaurinae, Prohadrosaurinae, Saurolophinae, Taponichnus, Telosichnus, Trachodon imperfectus, Protrachodontinae

Subtaxa: none

Ecology: ground dwelling herbivore