Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Tarsier:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

At a lower phylogenetic level, the tarsiers have, until recently, all been placed in the genus Tarsius,[2] while it was debated whether the species should be placed in two (a Sulawesi and a Philippine-western group) or three separate genera (Sulawesi, Philippine and western groups).[3] Species level taxonomy is complex, with morphology often being of limited use compared to vocalizations.[citation needed] Further confusion existed over the validity of certain names. Among others, the widely used T. dianae has been shown to be a junior synonym of T. dentatus, and comparably, T. spectrum is now considered a junior synonym of T. tarsier.[2]