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Question : When is a taxon said to be extinct?

Answer»

Solution :(i) A TAXON is Extinct when there is no reasonable doubt on the death of the last individual.
(ii) A taxon is PRESUMED Extinct when exhaustive surveys in known and/ or expected habitat, at appropriate times (DIURNAL, seasonal, annual), throughout its historic range have failed to RECORD an individual.
Example: Neuracanthus neesianus.


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