Definition of Helicoplacoidea. Meaning of Helicoplacoidea. Synonyms of Helicoplacoidea

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

Definition of Helicoplacoidea

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Meaning of Helicoplacoidea from wikipedia

- Helicoplacoidea is an extinct class within the Echinodermata. All known taxa were discovered in sediments dating back to the Cambrian. Helicoplacoid skeletons...
- Arkarua is tentatively placed as the sister to all other echinoderms. Helicoplacoidea and Edrioasteroidea join it in the stem group. Pelmatozoa, Eocrinoidea...
- This List of echinoderm orders concerns the various classes and orders into which taxonomists categorize the roughly 7000 extant species as well as the...
- Domain: Eukaryota Kingdom: Animalia Phylum: Echinodermata class: †Helicoplacoidea Genus: †Helicoplacus Species Helicoplacus curtisi Helicoplacus guthi...
- Helicocystis is a stalked, spiralling pentaradial echinoderm known from the Cambrian Jbel Wawrmast Formation. Smith, A. B.; Zamora, S. (2013). "Cambrian...
- List of echinodermata orders Calcichordate Theory Edrioasteroidea Helicoplacoidea Blastozoa Geggel, Laura (22 February 2019). "480-Million-Year-Old Mystery...
- 30 (1): 9–14. JSTOR 1300370. Durham, J. W.; Caster, K. E. (1963). "Helicoplacoidea: A New class of Echinoderms". Science. 140 (3568): 820–822. Bibcode:1963Sci...