†Grumileophyllum Geyler 1887
PaleoDB taxon number: 409065
Parent taxon: Rubiaceae according to H. N. Andrews 1970
Sister taxa: Asperula, Canthidium, Cinchonidium, Coprosma, Galium, Guettarda, Hodgkinsonia, Hoffmannia, Ixorophyllum, Mitragynaxylon, Morinda, Nertera, Ophiorrhiza, Palaeocoprosmadites, Psychotriphyllum, Randia, Rubiaceaecarpum, Rubiaceocarpum, Rubioides, Rubioxylon, Valerianellites
Subtaxa: Grumileophyllum attenuatum