Eocarcinoidea

{{Short description|Extinct group of crustaceans}}

{{Automatic taxobox

| fossil_range = {{fossil_range|Norian|Pliensbachian}}

| taxon = Eocarcinoidea

| authority = Withers, 1932

| subdivision_ranks = Genera

| subdivision =

• Eocarcinus
• Platykotta

}}

Eocarcinoidea is a superfamily of fossil decapod crustaceans. Formerly thought to be the earliest true crabs, they are now thought to be the oldest members of the Anomura. Two species are included, each in its own family-taxon: Eocarcinus praecursor (Eocarcinidae) and Platykotta akaina (Platykottidae).{{cite journal |author=Jérôme Chablais, Rodney M. Feldmann & Carrie E. Schweitzer |year=2011 |title=A new Triassic decapod, Platykotta akaina, from the Arabian shelf of the northern United Arab Emirates: earliest occurrence of the Anomura |journal=Paläontologische Zeitschrift |volume=85 |pages=93–102 |doi=10.1007/s12542-010-0080-y |url=http://decapoda.nhm.org/pdfs/31744/31744.pdf |format=PDF}}