Article · Wikipedia archive · Last revised Jul 16, 2026

Platanaster

Platanaster is an extinct genus of sea stars.

Last revised

Jul 16, 2026

Read time

≈ 1 min

Length

106 w

Citations

2

Source

Platanaster
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Asteroidea
Order:	†Platyasterida
Family:	†Palasteriscidae
Subfamily:	†Palasteriscinae
Genus:	†Platanaster

Platanaster ('plate star') is an extinct genus of sea stars.

Taxonomy

†Palasteriscidae

†Urasterellinae
- †Cnemidactis
  - †C. girvanensis
- †Urasterella
  - †U. asperrimus
†Palasteriscinae
- †Lanthanaster¹
  - †L. cruciformis
- †Platanaster
  - †P. ordovicus ²
- †Baliactis
  - †B. ordovicus

References

References

Blake, Daniel B. (November 2007). "Two Late Ordovician asteroids (Echinodermata) with characters suggestive of early ophiuroids". Journal of Paleontology. 81 (6): 1476–1485. Bibcode:2007JPal...81.1476B. doi:10.1666/05-130.1. S2CID 131513655.
Blake, Daniel B. (1994). "Re-Evaluation of the Palasteriscidae Gregory, 1900, and the Early Phylogeny of the Asteroidea (Echinodermata)". Journal of Paleontology. 68 (1): 123–134. Bibcode:1994JPal...68..123B. doi:10.1017/S0022336000025646. ISSN 0022-3360. JSTOR 1306091. S2CID 132568577.