Blomosaurus ivachnenkoi was named by Tatarinov (1978). Its type specimen is PIN 2888/10 (also cited as 2888/1), a partial skull, and it is a 3D body fossil. Its type locality is Anisimovo village, which is in an Induan terrestrial horizon in the Vokhma Formation of the Russian Federation. It is the type species of Blomosaurus.