Eucrassatella is a genus of marine bivalve molluscs of the family Crassatellidae. Members of the genus are found in the waters of Australia and New Zealand.
Members of Eucrassatella have a thick and elongated shell, with well-developed triangular-shaped cardinal teeth, smooth valve margins, ribbed commarginal sculpture and adductor muscle scars which are deeply impressed.
The genus was first described in 1924 by Tom Iredale.
Eurytellina is found in the waters of Australia and New Zealand. The earliest fossils date to the Oligocene.
Species within the genus Eucrassatella include: