See text Liberiblattinidae is an extinct family of cockroaches known from the Jurassic to Cretaceous.

Some taxa, like Cryptoblatta and Hydrokhoohydra, are suggested to be semiaquatic.

[1] Spongistoma is suggested to be a nectarivore due to its unique sucking/sponging "proboscis" mouthparts.

[2] Some authors have suggested that the family is ancestral to Mantodea.

[3] Based on[4] Indeterminate juveniles are also known from the Aptian Crato Formation of Brazil, the Aalenian Bakhar Formation of Mongolia,[1] and the Santonian Taimyr amber of Russia.