| Radiasteridae | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | Paxillosida |
| Family: | Radiasteridae Fisher, 1916 |
Radiasteridae is a family of echinoderms belonging to the order Paxillosida. [1]
Genera: [1]
The Paxillosida are a large order of sea stars.
Betelgeusia is an extinct genus of sea stars in the family Radiasteridae. It was described by Blake and Reid, in 1998, and existed in what is now the Netherlands, Texas, United States, Morocco, and India, during the Middle Jurassic through the Cretaceous period. It contains the species B. brezinai, B. exposita, B. riedi, and B. orientalis.
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