Genus: Erketu KSEPKA & NORELL, 2006
Etymology: Erketü, in Mongolian shamanistic tradition, there are 99 Tengri (Deities). Erketü Tengri is the Mighty Tengri, a creator-god who called Yesügei, the father of Chingis Khan, into being.
Species: ellisoni KSEPKA & NORELL, 2006
Etymology: In honor of Mick Ellison, for his contributions to ongoing AMNH dinosaur research.
= Titanosauridae incertae sedis KSEPKA, 2004
Holotype: IGM 100/1803
Locality: Bor Guve, Dornogov Aimag, Mongolia.
Horizon: Provisionally referred to the Baynshiree Formation.
Note: Below the Tsaagan Tsonch Beds (a unit that contains Iguanodon orientalis) and above the Khara Khuutul beds, both believed to be of Late Early Cretaceous age (Shuvalov, 2000). The lack of materials suitable for radiometric dating leaves the excat age of this locality uncertain.
Age: Late Early Cretaceous.
Material: Articulated cervical series including complete 1st through 5th cervical vertebrae, partial 6th cervical vertebra, right sternal plate, articulated right tibia, fibula, astragalus, and calcanieum.
KSEPKA & NORELL, 2010
IGM 100/1803: 3 articulated cervical vertebrae. Note: These were found at the same locality and horizon as the holotype and these are referred to the holotype.