| Toxasteridae Temporal range: 1
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| Fossil of Heteraster oblongus from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Spatangoida |
| Family: | †Toxasteridae J. Lambert, 1920 |
Toxasteridae is an extinct family of sea urchins.
These slow-moving shallow infaunal deposit feeder-detritivores lived during the Cretaceous period, from 145.5 to 61.7 Ma.1
Genera
- Adytaster
- Aphelaster
- Douvillaster
- Enallopneustes
- Heteraster
- Isaster
- Isomicraster
- Macraster
- Mokotibaster
- Palmeraster
- Polydesmaster
- Toxaster