Calappilia is an extinct genus of box crabs belonging to the family Calappidae.

The type species of the genus is Calappilia verrucosa.

[1] Fossils of crabs within this genus have been found in Italy, United States, Mexico, Chile, and Brazil from Paleogene to Miocene (age range: 55.8 to 15.97 Ma).

[1] Species within this genus include:[1] Fossils of Calappilia have been found in:[1]

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