Family Gigantactinidae Boulenger 1904

Gigantactinidae Boulenger 1904a:188 [ref. 15112] (family) Gigantactis [genus inferred from the stem, Article 11.7.1.1; family name sometimes seen as Gigactinidae]

Laevoceratiidae Regan & Trewavas 1932:6, 92 [ref. 3682] (family) Laevoceratias