Notholithocarpus Manos, Cannon & S.H.Oh genus accepted

Calucechinus Hombr. & Jacquinot, 1843 genus doubtful

Fagus-castanea Marshall genus synonym

Galla Ludwig, 1857 genus accepted

Querciphyllum Nathorst, 1888 genus accepted

Sabinoxylon E.Estrada-Ruiz, H.I.Martínez-Cabrera & S.R.S.Cevallos-Ferriz, 2007 genus doubtful

Catahoulea M.L.DeVore, K.B.Pigg, D.L.Dilcher & D.Freile, 2014 genus doubtful

Pasania Miquel, 1855 genus doubtful

Tenupalpa genus doubtful

Carpinites Göppert & Berendt, 1845 genus accepted

Kloedenia H.R.Göppert, 1839 genus doubtful

Fagus L. genus accepted

Callaeocarpus Miq. genus synonym

Trigonobalanus Forman genus accepted

Lithocarpus Blume genus accepted

Formanodendron Nixon & Crepet genus synonym

Limlia Masam. & Tomiya genus synonym

Colombobalanus Nixon & Crepet genus synonym

Corylopasania (Hickel & A.Camus) Nakai genus synonym

Quercus L. genus accepted

Ilex Mill. genus synonym

Castanopsis (D.Don) Spach genus accepted

Castanea Mill. genus accepted

Eriodrys Raf. genus synonym

Chrysolepis Hjelmq. genus accepted

Scolodrys Raf. genus synonym

Arcaula Raf. genus synonym

Dryopsila Raf. genus synonym

Kuromatea Kudô genus synonym

Balanoplis Raf. genus synonym

Macrobalanus (Oerst.) O.Schwarz genus synonym

Synaedris Steud., 1841 genus doubtful

Castanophorum Neck. genus synonym

×Castanocastanea P.V.Heath genus doubtful

×Castanocasta Cif. & Giacom. genus synonym

Phegos St.-Lag. genus synonym

Chlamydobalanus (Endl.) Koidz. genus synonym

Cyclobalanus (Endl.) Oerst. genus synonym

Cyclobalanopsis Oerst. genus synonym

Synaedrys Lindl. genus synonym

Pleiosyngyne Baum.-Bod., 1992 genus doubtful

Perytis Raf. genus synonym

Pasaniopsis Kudô genus synonym

Pasania (Miq.) Oerst. genus synonym

Fagus-Castanea H.Marshall, 1785 genus synonym

Cerris Raf. genus synonym

Shiia Makino genus synonym

Balanaulax Raf. genus synonym

Erythrobalanus (Oerst.) O.Schwarz genus synonym

Quercoxylon E.Hofmann, 1929 genus accepted

Dryophyllum Debey, 1865 genus accepted

Castanoxylon G.K.B.Navale, 1964 genus accepted

Castanopsoidea W.L.Crepet & K.C.Nixon, 1989 genus accepted

Castaneophyllum J.H.Jones & D.L.Dilcher, 1988 genus accepted

Castaneoides H.D.McGinitie, 1974 genus doubtful

Castaneoidea W.L.Crepet & C.P.Daghlian, 1980 genus doubtful

Cascadiacarpa R.A.Mindell, R.A.Stockey & G.Beard, 2007 genus doubtful

Pseudofagus C.J.Smiley & L.M.Huggins, 1981 genus accepted

Dryobalanus Landgrebe, 1842 genus accepted

Protofagacea P.S.Herendeen, P.R.Crane & A.N.Drinnan, 1995 genus accepted

Antiquacupula H.J.Sims, P.S.Herendeen & P.R.Crane, 1998 genus accepted

Fagopsis Hollick, 1909 genus accepted

Fagophyllum A.G.Nathorst, 1888 genus accepted

Fagaceoxylon R.A.Scott & E.A.Wheeler, 1982 genus doubtful

Suber P.Miller, 1754 genus doubtful

Pasianopsis Saporta & Marion, 1878 genus accepted

Parvobalanus W.L.Crepet & K.C.Nixon, 1989 genus accepted

Nothofagoxylon W.Gothan, 1908 genus accepted

Paraquercinium E.F.Wheeler, M.Lee & L.C.Matten, 1987 genus doubtful

Berryophyllum J.H.Jones & D.L.Dilcher, 1988 genus doubtful

Nephelites H.Deane, 1902 genus accepted

Amplobalanus W.L.Crepet & K.C.Nixon, 1989 genus accepted

Trigobalanoidea W.L.Crepet & K.C.Nixon, 1989 genus doubtful

Amentoplexipollenites W.L.Crepet & K.C.Nixon, 1989 genus doubtful

Amentogerdiopollenites W.L.Crepet & K.C.Nixon, 1989 genus accepted

Parafagus W.R.B.Oliver, 1936 genus accepted

Quercophyllum Fontaine, 1889 genus accepted

Quercinium Unger, 1842 genus accepted

Eotrigonobalanus H.Walther & Z.Kvacek, 1989 genus doubtful

Paleojulacea W.L.Crepet & K.C.Nixon, 1989 genus accepted