Urasterella
| Urasterella | |
|---|---|
| |
| Urasterella asperula | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | †Platyasterida |
| Family: | †Palasteriscidae |
| Subfamily: | †Urasterellinae |
| Genus: | †Urasterella McCoy (1851) |
| Species | |
|
see text | |
| Synonyms | |
| |
Urasterella is an extinct genus of sea stars that lived from the Ordovician to the Devonian.[1] Its fossils are known from Europe, North America and southern Africa.[1]
Species
[edit]There have been a number of species assigned or transferred to the genus since its description in 1851.[1]
- U. asperrimus
- U. asperula (syn. Protasteracanthion primus)
- U. biradialis (syn. Salteraster biradialis)
- U. constellata
- U. coronella (syn. Salteraster coronella)
- U. creswelli
- U. grandis
- U. gutterfordensis
- U. huxleyi
- U. imbricatus (syn. Salteraster imbricatus)
- U. montana
- U. pulchella
- U. ruthveni
- U. selwyni (syn. Salteraster selwyni)
- U. thraivensis
- U. ulrichi
Sources
[edit]- ^ a b c d http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=31404&is_real_user=1 The Paleobiology Database Urasterella entry
- Urasterella (syn. Roemeraster) in the Field Museum's Evolving Planet
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