Category:Extant Middle Jurassic first appearances
{{Portal|Paleontology}}
{{C|Extant Mesozoic first appearances|Extant}} {{C|Middle Jurassic first appearances}}.
Biological taxa that first appeared during the {{C|Middle Jurassic|Middle Jurassic epoch}} between 174.1 and 163.5 million years ago, and have not yet gone extinct.
{{geological category see also}}