''Pteroceltis'' is a genus of small trees in the family

Cannabaceae Cannabaceae is a small family of flowering plants, known as the hemp family. As now circumscribed, the family includes about 170 species grouped in about 11 genera, including ''Cannabis'' (hemp), '' Humulus'' (hops) and '' Celtis'' (hackberries ...

and containing the living species '' Pteroceltis tatarinowii''. The genus is now restricted to an endemic range in China and Mongolia. The genus has a fossil record which includes species described from Korea, Japan, Germany, and the United States. The fossil record includes one described species from North America, '' Pteroceltis knowltoni'' from the

Middle Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "da ...

Cockfield Formation in Tennessee, while an undescribed species is known from the Klondike Mountain Formation of Washington. One late Oligocene species '' Pteroceltis tertiaria'' has been described from strata near Rott, Germany. The largest diversity of fossils are from Asia, with '' Pteroceltis shanwangensis'' from the Miocene Shanwang flora in China, the Abura flora of Japan preserved '' Pterocarya ezoana'', and both '' Pteroceltis taoae'' plus '' Pteroceltis kungshimensis'' known from the Miocene Hoengyeong Formation in North Korea.

References

{{Taxonbar, from1=Q3487254 Cannabaceae Plants described in 1873 Trees of China Endemic flora of China Rosales genera