This specimen was found in rocks of the lower Santonian-age Upper Cretaceous Yalovach Svita of Kansai, in the Fergana Basin of Tajikistan.

Additional fossils including vertebrae and bony armor have been assigned to this genus.

[2] Halliday et al. (2013) confirmed the validity of the species K. extensus, and its phylogenetic position among other basal goniopholidids from Asia.

Therefore, the authors raised the suggestion that later revisions and phylogenetic analyses would result in the abandonment of the name Kansajsuchus, and a referral of its type species to Sunosuchus.

[3] However, a subsequent paper by Kuzmin et al. (2019) showed that Kansajsuchus is a member of the family Paralligatoridae.