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Thornback Skate

Raja clavata Linnaeus 1758

Duarte Frade   cc-by-nc-4.0

Raja clavata (Thornback Skate) is a species of rays in the family skates. This species is extinct. They are listed as near threatened by IUCN. They are native to Mediterranean Sea, the Palearctic, and Ethiopia. They are carnivores. Individuals could grow to 139 cm. Reproduction was oviparous and iteroparous. They rely on swimming and pectoral fin swimming to move around.

  • 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 \r\nlife cycle and life form.
  • Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria
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EOL has data for 51 attributes, including:

Known occurrences, collected specimens and observations of Thornback skate. View this species on GBIF