Genus: Sirindhorna SHIBATA, JINTASAKUI, AZUMA, & YOU, 2015
Etymology: Dedication to the Princess Maha Chakri Sirindhorn, Thailand, for her contribution to the support and encouragement of paleontology  in Thailand.

Specie: khoratensis SHIBATA, JINTASAKUI, AZUMA, & YOU, 2015
Etymology: In referene to the localkty, Khorat, which is the informal name of Nakhon Ratchasima Province, northeastern Thailand.

Holotype: NRRU3-166

Locality: In Ban (meaning "village" Saphan Hin, Suranaree Subdistrict, Muaeng Nakhon Ratchasima District, Nakhon Ratchasima Province, Thailand.

Horizon: Khok Kruat Formation.


Age: Aptian Stage, Lower Gallic Subepoch, upper Early Cretaceous, Late Early Cretaceous.

Material: An articulated braincase comprising the supraoccipital, exoccipitals, opisthotics, prootics, parietals, frontals, basioccipitla, basisphenoid orbitospohenoids, parasphenoid and laterosphenoids, wiht postorbitals and squamosals.

Referred material:

NRRU-A1956, A3630, A2649, NRRU3001-157, 163: Isolated maxillary teeth.

NRRU-A2035; : Braincase articulating with a left postorbital.

NRRU-A2047: Right maxilla.

NRRU-A2048: Left maxilla.

NRRU-A3623: A right premaxilla.

NRRU3001-65: Dorsal half of a braincase.

NRRU3001-7: Right jugal.

NRRU3001-14: Left dentary.

NRRU3001-28: An isolated dentary tooth.

NRRU3001-137: A right surangular.

NRRU3001-167: A right dentary.

NRRU3001-169: Predentary.

NRRU3001-175: Right quadrate.

NRRU3001-179: Caudal portion of a braincase.