Definition of Somasteroidea. Meaning of Somasteroidea. Synonyms of Somasteroidea

Here you will find one or more explanations in English for the word Somasteroidea. Also in the bottom left of the page several parts of wikipedia pages related to the word Somasteroidea and, of course, Somasteroidea synonyms and on the right images related to the word Somasteroidea.

Definition of Somasteroidea

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Meaning of Somasteroidea from wikipedia

- The Somasteroidea, or Stomasteroidea, is an extinct order of asterozoan echinoderms first defined in 1951 by W. K. Spencer. Their first appearance in...
- Ophiuroidea (the brittle stars and basket stars), and the extinct order Somasteroidea. Members of the order Asteroidea are characterised by a star-shaped...
- fossil record in the Cambrian. The first known asterozoans were the Somasteroidea, which exhibit characteristics of both groups. Starfish are infrequently...
- classes: Asteroidea: true sea stars Ophiuroidea: brittle stars and basket stars Somasteroidea (sometimes also Stomasteroidea): ancestral stelleroids v t e...
- Bather, 1900 classes Subphylum Asterozoa class Asteroidea class Ophiuroidea Subphylum Echinozoa class Echinoidea class Holothuroidea Order †Somasteroidea...
- ancestor of Asterozoa. H. B. Fell. (1963). A new family and genus of Somasteroidea. Transactions of the Royal Society of New Zealand, Zoology 3(13):143-146...