Petraster

Petraster; Temporal range: 449.5–418.7 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Petraster sp.
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Asteroidea
Genus:	†Petraster; Billings, 1858
Species
	†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
	Uranaster Gregory, 1899;

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]

References

↑ "Petraster". Global Biodiversity Information Facility. Retrieved 22 December 2021.
1 2 "Petraster". Paleobiology Database. Retrieved 22 December 2021.
1 2 "Petraster †". mindat.org.

[1] "Petraster". Global Biodiversity Information Facility. Retrieved 22 December 2021.

[fossilworks-2] 1 2 "Petraster". Paleobiology Database. Retrieved 22 December 2021.

[genus_mindat-3] 1 2 "Petraster †". mindat.org.

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Petraster

References

Petraster Temporal range: 449.5–418.7 Ma PreꞒ Ꞓ O S D C P T J K Pg N

Petraster sp.
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