Acer chaneyi is an extinct maple species in the family Sapindaceae described from a number of fossil leaves and samaras.

[1] Acer chaneyi is known from leaf and samara specimens which were recovered from a number of different formations in Western North America.

The fossils used for his description of the species however were a mix of several different plants, and the type specimens were later transferred to the genus Platanus as P. bendirei.

The next oldest name, Acer gigas, is from 1902 and was coined by Frank Knowlton for a fossil samara from the John Day formation.

The fossil is missing the base of the fruit and the attachment scar, which is diagnostic for Acer: thus it was rejected by Wolfe and Tanai.

They settled on A. chaneyi as the oldest valid species description[1] coined by Knowlton in 1926 for leaves from the Latah Formation around Spokane, Washington.