- Extant taxon
Extant is a term commonly used to refer to
taxa(such as species, genera or families) that are still in existence (living). The term "extant" contrasts with " extinct". For example, Brandt's Cormorantis an extant species, while the Spectacled Cormorantis an extinct species. Likewise, of the group of molluscs known as the cephalopods, there are approximately 600 extant species and 7500 extinct species [Citation
last1 = Barnes | first1 = Robert D.
title = Invertebrate Zoology (5th edition)
publisher = Saunders College Publishing, Philadelphia, USA
year = 1987
isbn = 003008914X ] .
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