Petraster is a genus of extinct starfish 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]

P. kinahani

References

  1. ^ "Petraster". Global Biodiversity Information Facility. Retrieved 22 December 2021.
  2. ^ a b "Petraster". Paleobiology Database. Retrieved 22 December 2021.
  3. ^ a b "Petraster †". mindat.org.
Allikas: http://en.wikipedia.org/wiki/Petraster
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