Petraster

Petraster is a genus of extinct Asteroid echinoderm that lived from the upper Ordovician to the late Silurian.[2][3] The genus has a large distribution range, fossils have been found in North America, and Australia.[3] Based on related echinoderms, this creature was a slow moving, benthic carnivore[3] that possibly hunted early clams and brachiopods. It also could have had a Planktonic childhood, and also could have regenerated its arms like modern day starfish.

Petraster
Temporal range:
A specimen of Petraster kinahani
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Asteroidea
Genus: †Petraster
Billings, 1858
Species[1]
  • †Coelaster americanus (d'Orbigny, 1850)
  • †Palasterina kinahani (Baily, 1878)
  • †Palasterina ramseyensis (Hicks, 1873)
  • †Palasterina rigidus (Billings, 1857)
  • †Petraster angustior Withers & Keble, 1934
  • †Petraster crozonensis Blake et al., 2016
  • †Petraster richi Withers & Keble, 1934
  • †Petraster smythi McCoy, 1874
Synonyms[2]
  • Uranaster Gregory, 1899

References
  1. "Petraster". Global Biodiversity Information Facility. Retrieved 22 December 2021.
  2. Petraster at fossilworks.org (retrieved 22 December 2021)
  3. "Petraster †". mindat.org.{{cite web}}: CS1 maint: url-status (link)
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