A new species Koelreuteria quasipaniculata is recognized from the Early to Middle Miocene of northeastern Tibetan Plateau.
The newly discovered fossil materials add to the diversity of Koelreuteria in Central-East Asia during the Miocene.
This fossil record contributes to our understanding of the past vegetation change of northeastern Tibetan Plateau.
This finding expands the paleobiogeographic distribution into Central Asia formerly known as a geographic gap.