Sorry, that is incorrect.

Besides angels, there are three other types of heavenly beings mentioned in the Bible: Cherubim (Gen 3:24; Ps 18:10; Ezek 10:1-22), Seraphim (Isa 6:27) and Living Creatures (Ezek 1:5-14; Rev 4:6-8).

Many scholars see these heavenly beings as being special types of angels, and Living Creatures as a term describing Cherubim and Seraphim.