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Hemiaster amudariensis Shmidt & Simakov 1953

Hemiaster amudariensis is a species of echinoderms in the family Hemiasteridae. This species is extinct. Dead Hemiaster amudariensis form shallow marine sediments. They are bioturbators. They have sexual reproduction.

  • URI: http://eol.org/schema/terms/extinct
  • Definition: A taxon is Extinct when there is no reasonable doubt that the last individual has died. A \r\ntaxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, \r\nat appropriate times (diurnal, seasonal, annual), throughout its historic range have failed \r\nto record an individual. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form.
  • Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria
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  • URI: http://purl.obolibrary.org/obo/GO_0019953
  • Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.
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EOL has data for 12 attributes, including: