Daonella is a genus of oyster-like saltwater clams, marine bivalve mollusks which lived in the middle to late Triassic period.

[1] They are related to the genera Aparimella and Halobia.

[2] Since they were ubiquitous in the Arctic, Tethys and Panthalassa seas, they are frequently used as index fossils in dating rocks to the Triassic period.

[3] However, the systematic classification of the Daonella is still an area of ongoing research.

[4] This article about a prehistoric bivalve is a stub.