Abstract
We report the discovery of a fossil agaricoid homobasidiomycete from Dominican amber (ca 15–20 Ma). Aureofungus yaniguaensis appears to be a member of the euagarics clade, but its precise taxonomic placement is obscure. This is the fourth known fossil agaric and the third from Dominican amber.
We are grateful to David Grimaldi, who examined the specimen and commented on its authenticity, and Scott Redhead, who made valuable editorial suggestions.