Explore relationships
Rudist
Rudists are a group of extinct box-, tube- or ring-shaped marineheterodontbivalves belonging to the order Hippuritida that arose during the Late Jurassic and became so diverse during the Cretaceous that they were major reef-building organisms in the Tethys Ocean, until their complete extinction at the close of the Cretaceous.
Use + to expand a branch. Click a topic name to open its summary.