Category:Chattian first appearances
{{Commonscat|Chattian first appearances}}
{{Portal|Prehistoric life}}
{{C|Cenozoic first appearances|First appearances of biota}} during the {{C|Chattian|Chattian Age}}, the geologic time between 28.1 and 23 million million years ago, during the {{C|Oligocene|Oligocene Epoch}} of the {{C|Paleogene|Paleogene Period}} in the Cenozoic Era.
{{geological category see also}}
{{See also|Category: Chattian extinctions}}