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Asterozoa are a class of marine animals who belong to the phylum Echinodermata, the largest phylum without any freshwater or terrestrial forms.

Scientific classification
Kingdom: Animalia
Subkingdom: Metazoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Klein, 1734


The above cladogram is a summary phylogenetic hypothesis of the Echinodermata, based on David and Mooi (1997), Littlewood et al. (1997), and Sumrall and Sprinkle (1997). Note that Edrioasteroidae is not a monophyletic group and that the phylogenetic position of most fossil echinoderms is still uncertain.

on to major subgroups in Phylum Echinodermata


Author: Elizabeth Sweet
Last updated: 22nd November 2005
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Websites produced by students on the MSc Palaeobiology programme in the Department of Earth Sciences at the University of Bristol for academic year 2005-6