Trapezioidea

{{Short description|Superfamily of crabs}}

{{Automatic taxobox

| image = Trapezia tigrina - Red Spotted Guard Crab.jpg

| image_caption = Trapezia tigrina (Trapeziidae)

| fossil_range = {{fossil_range|Eocene|Recent}}

| display_parents = 2

| taxon = Trapezioidea

| authority = Miers, 1886 {{cite WoRMS|last=Ahyong|first=Shane T.|author-link=Shane T. Ahyong|date=21 July 2024|title=Trapezioidea Miers, 1886|id=439102|access-date=14 October 2024}}

| subdivision_ranks = Families

| subdivision = See text

}}

Trapezioidea is a superfamily of crabs. Its members live symbiotically with corals and have a fossil record stretching back to the Eocene.{{cite journal |journal=Journal of Crustacean Biology |volume=25 |issue=4 |pages=625–636 |year=2005 |doi=10.1651/C-2575.1 |jstor=4094148 |title=The Trapeziidae and Domeciidae (Decapoda: Brachyura: Xanthoidea) in the fossil record and a new Eocene genus from Baja California Sur, Mexico |last=Schweitzer |first=Carrie E. |doi-access=free }}