Molecular research confirms the relations of Gyrodon, with the decurrent-pored mushroom G. lividus, Paragyrodon, with the type species P. sphaerosporus, and Paxillus as sister groups, together lying near the base of a phylogenetic tree from which the genus Boletus arises.
Molecular research confirms that Gyrodon is related to G. lividus, Paragyrodon to P. sphaerosporus, and Paxillus forms a sister group; these are located near the base of a phylogenetic tree from which the genus Boletus develops.