Purpuroidea is an extinct genus of sea snails, marine gastropod molluscs in the clade Littorinimorpha.

These extinct sea snails lived between the Middle Triassic, Ladinian age (about 242 - 237 million years ago) and the Early Cretaceous, Turonian age (about 122 – 112 million years ago).

[1][2] The fossils were found in Japan, Portugal, Ethiopia, France, Israel, Italy, Jordan, Kenya, Mexico, Romania, Saudi Arabia, Tanzania, Tunisia, Austria, Hungary, Iran and United States.

[3] Species within this genus include: [3]

This prehistoric gastropod article is a stub.