[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Ratchasimasaurus, new Asian iguanodontian



From: Ben Creisler
bh480@scn.org

New dinosaur:


Masateru SHIBATA, Pratueng JINTASAKUL, & Yoichi AZUMA  (2011)
A New Iguanodontian Dinosaur from the Lower Cretaceous Khok Kruat
Formation, Nakhon Ratchasima in Northeastern Thailand.
Acta Geologica Sinica - English Edition 85(5): 969?976
DOI: 10.1111/j.1755-6724.2011.00230.x
http://onlinelibrary.wiley.com/doi/10.1111/j.1755-6724.2011.00230.x/abstract


Here we report a new iguanodontian dentary found from the Lower Cretaceous
Khok Kruat Formation, Nakhon Ratchasima, northeast Thailand. A unique
character, which is an elongated and flat shape of the dentary ramus, makes
it possible to assign the specimen to the new genus of non-hadrosaurid
iguanodontian, Ratchasimasaurus suranareae gen. et sp. nov. R. suranareae
shows both primitive and derived characters, such as a caudally inclined
coronoid process and alveolar trough with a primitive crown impression, and
a derived buccal shelf between tooth row and coronoid process. The
discovery of a new iguanodontian from the Indochina Terrene, considering
that the previously reported ?Probactrosaurus-like? iguanodontian, points
out a great diversity of this group in the late Early Cretaceous in
Thailand, and corresponds to the Asian iguanodontian diversity at that time.



--------------------------------------------------------------------
mail2web.com ? Enhanced email for the mobile individual based on Microsoft®
Exchange - http://link.mail2web.com/Personal/EnhancedEmail