Subphylum

Asterozoa Zittel, 1895

Selection of related publications

Tinn, O., Ainsaar, L. 2014. Asterozoan pedicellariae and ossicles revealed from the Middle Ordovician of Baltica.. Acta Palaeontologica Polonica 59, 2, 353-358. DOI:10.4202/app.2012.0034

Blake, D. B., Rozhnov, S. 2007. Aspects of life mode among Ordovician asteroids: Implications of new specimen from Baltica. Acta Palaeontologica Polonica 52, 3, 519-533.

Hansen, T., Bruton, D. L., Jakobsen. L. 2005. Starfish from the Ordovician of the Oslo Region, Norway. Norwegian Journal of Geology 85, 3, 209-216.

Shackleton, J. D. 2005. Skeletal homologies, phylogeny and classification of the earliest Asterozoan echinoderms. Journal of Systematic Palaeontology 3, 1, 29-114. DOI:10.1017/S1477201905001525

Franzén, C. 1979. Echinoderms. Sveriges Geologiska Undersökning 73, 3, 216-224.

List of species

1. Cnemidactis osloensis Hansen, Bruton et Jakobsen, 2005 | Middle Ordovician

2. Estoniaster maennili Blake et Rozhnov, 2007 | Keila Stage

3. Palasterina antiqua (Hisinger, 1837) | Ludlow

4. Urasterella ruthveni Forbes, 1848 | Wenlock→Ludlow

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Echinodermata
Subphylum	Asterozoa
Class	Asteroidea
	Ophiuroidea
Subphylum	Blastozoa
	Echinozoa
	Eleutherozoa
	Pelmatozoa
Class	Cyclocystoidea
	Homoiostelea
	Stylophora