OLIGOCENE FOSSIL WINGED FRUITS OF TRIBE ENGELHARDIEAE (JUGLANDACEAE) FROM THE NINGMING BASIN OF GUANGXI PROVINCE, SOUTH CHINA

Two new types of fossil winged fruits of tribe Engelhardieae (Juglandaceae) are recognized in the Oligocene sediment from the Ningming Basin of Guangxi Province, south China, Palaeocarya guangxiensis sp.nov., and Alfaropsis koreanica (Oishi) Iljinskaya. The Alfaropsis koreanica fossils reported here are from the lowest latitude yet documented for the Oligocene. These fossils augment previously described engelhardioid fruit species from the same locality, Palaeocarya guangxiensis Li et Chen and Palaeocarya ningmingensis Li et Chen providing additional evidence for diversity of Juglandaceae in the Paleogene of South China, and new data for the investigation of the origin and evolution and paleobiogeographical history of the juglandaceous tribe Engelhardieae.