Thomassiniidae Callianideidae is a family of crustaceans belonging to the infraorder Axiidea, within the order Decapoda.

[1] The cladogram below shows Callianideidae's placement within Axiidea, from analysis by Wolfe et al., 2019.

[2] Axiidae Callianideidae Gourretiidae Callianassidae Callianideidae contains the following genera:[1]

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