Life » » Eläinkunta » » Piikkinahkaiset » » Merisiilit »

Circopeltis maastrichtensis (Engel 1972)

Circopeltis maastrichtensis is a species of Piikkinahkaiset. This species is extinct.

  • URI: http://eol.org/schema/terms/extinct
  • Määritelmä: 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 \r\nlife cycle and life form.
  • Määrite: http://www.iucnredlist.org/technical-documents/categories-and-criteria
show all records

EOL:llä on tietoa 8 määritteelle, mukaan lukien: