Subfamily Iguanodectinae Eigenmann 1909

Iguanodectinae Eigenmann 1909b:254 [ref. 1223] (subfamily) Iguanodectes [genus inferred from the stem, Article 11.7.1.1]

Piabucinae Fowler 1950:340 [ref. 18869] (subfamily) Piabucus [name only, but used as valid, as Piabucidi, by Fowler 1958b:10 [ref. 1470] Article 13.2.1]