The section on tensonkorin (the descent to earth of the grandson of the sun goddess) in "Sendai Kujihongi" (Ancient Japanese History) reads 'the ancestor of Yamato no Kanachi and others called Amatsumaura' and 'the ancestor of Mononobe no Miyatsuko and others called Amatsumara and the ancestor of Ato no Miyatsuko and others called Amenomara,' all of which are considered to be the same deity as Amatsumara.
先代旧事本紀の天孫降臨の段では、「倭（やまと）の鍛師（かなち）等の祖、天津真浦（あまつまうら）」「物部造等の祖、天津麻良（あまつまら）、阿刀造等の祖、天麻良（あめのまら）」とあり、これらは天津麻羅と同神と考えられる。