AnkylopollexiaAsiaCerapodaDinosauriaEarly CretaceousGenasauriaHadrosauriformesHadrosauroideaIguanodontiaNeornithischiaOrnithischiaOrnithopodaStyracosterna

Koshisaurus katsuyama

Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.


Dinosaur: Koshisaurus katsuyama

Cretaceous: 125.8–121.4 Ma
Type: Ornithopod

Length*:3.9 m12.8 ft
Weight*:250 kg551 lb
ESR: 2.5 / 4 (estimated size reliability)
*The largest known specimen

Asia

Area: Asia



Locations


Sources

Material: Right maxilla and referred neural arch of the axis, centrum of dorsal vertebra, proximal portion of left pubis and distal part of left femur.
References: Shibaba, M. & Azuma, Y. (2015) "New basal hadrosauroid (Dinosauria: Ornithopoda) from the Lower Cretaceous Kitadani Formation, Fukui, central Japan.".

________________________

If you are interested in Excel Professional version of Dinosaur or Pterosaur Database, write to us


Pterosaur Database