Table 1 in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA

Table 1. Comparison of fossil Magnoliaceae woods in chronological order. K =Cretaceous, (C)=Campanian, (M)=Maastrichtian, Eo =Eocene, Olig =Oligocene; Mio =Miocene, e =early, m =middle, up =upper; IVP =intervessel pitting, S =scalariform, O =opposite; Bars/PP =number of bars per scalariform perforation plate; Si =simple perforation plates present; HT =helical thickenings in vessel elements; O/M = oil/mucilage cells; Y =present; N =absent; * =small axis, () =not as common. References. 1 =Cevallos-Ferriz and Stockey (1990); 2 = Huang et al. (2020; 3 = Huard (1967); 4 = Iamandei et al. (2011); 5 = Iamandei et al. (2020); 6 = Page (1970); 7 = Prakash et al. (1971); 8 = Sakala et al. (2010); 9 = Srivastava and Suzuki (2001); 10 = Suzuki (1976); 11 = Takahashi and Suzuki (2003); 12 = van der Burgh (1973); 13 = Wheeler et al. (1977); 14 = Wheeler and Manchester (2002).
SpeciesAgeIVPBars/PPSiHTOMReferenceMagnoliaceoxylon hokkaidoenseK (C-M)S, O12–47NNN11Magnoliaceoxylon panochensisK (C)S, Oup to 10NNN6Magnoliaceoxylon wetmoreie m EoS, (O)8–26NNY13Liriodendroxylon mutltiporosumm EoO2–10NN(Y)14Liriodendroxylon princetonensis *m EoS, O8–18NNN1Magnolia pageaem EoO5–20NNY14Magnoliaceoxylon angulatam EoS, O15–18NNN14Magnoliaceoxylon cutlerim EoS, (O)8–20NNY14Magnoliaceoxylon longiradiatam EoS, (O)6–20NN(Y)14Magnolia hansnooteboomii sp. nov.l EoS8–16NYNThis paperMagnoliaceoxylon palaeogenicae OligS4–15NNN9Michelia oleiferaOligS, O7–15NYY10Liriodendroxylon tulipiferumOligO~10NNN7, 8Magnolia nanningensisup OligS, O2–11NYY2Magnolioxylon c f. transilvanicumm MioS, OshortYNN4Magnolioxylon kräusellim Mio(S), O10–12NNN5Magnolia intermediaMioS15–20NNY3Magnolioxylon parenchymatosumMioS3–12NNN12