Table 1.

Planktonic foraminiferal and calcareous nannofossil events and interpretation of chrons boundaries for the Monte Cagnero section

Planktonic foraminiferal and calcareous nannofossil events and Chron boundariesDepth (msl)Age (Ma)Astronomical Age (Ma)
LO Orbulinoides beckmanni63.2040.50(1)40.330(6)
C18r/C18n.2n63.5740.130(3)40.120(6)
HO Orbulinoides beckmanni65.5040.00(1)39.860(6)
HO Chiasmolithus solitus70.0040.40(2)
C18n.2n/C18n.1r71.9239.756(4)–39.631(3)
C18n.1r/C18n.1n72.4539.686(4)–39.552(3)
C18n.1n/C17r77.9238.668(4)–38.426(3)
C17r/C17n.3n81.3038.380(4)–38.113(3)
LO Chiasmolithus oamaruensis84.0037.00(2)
C17n.3n/C17n.2r84.7036.100(4)–7.920(3)
HO Morozovelloides crassatus85.0038.00(1)
C17n.2r/C17n.2n85.4038.135(4)–37.848(3)
HO Chiasmolithus grandis85.5037.10(2)
LO Globigerinatheka semiinvoluta86.5038.00(1)
C17n.2n/C17n.1r86.8537.908(4)–37.604(3)
C17n.1r/C17n.1n87.6037.785(4)–37.473(3)
C17n.1n/C16r?92.0036.969(4)–36.618(3)
C16r?/C16n93.4036.700(4)–36.341(3)
HO Chiasmolithus oamaruensis98.5035.40(2)35.404(5)
C16n/C15r99.1536.706(4)–35.343(3)35.340(5)
HO Globigerinatheka semiinvoluta101.1035.80(1)35.520(5)
C15r/C15n102.2535.294(4)–34.940(3)34.960(5)
LO Turborotalia cunialensis102.5035.80(1)35.185(5)
C15n/C13r106.1034.999(4)–34.655(3)34.728(5)
HO Globigerinatheka index107.5234.30(1)34.400(5)
HO Discoaster saipanensis108.5034.20(2)
HO Cribrohantkenina inflata112.9034.00(2)34.221(5)
HO Turborotalia cerroazulensis113.6033.80(1)
HO Hantkenina alabamensis114.1033.70(1)33.703(5)
AB Clausicoccus obrutus114.50n.a.
C13r/C13n117.3033.705–33.545(3)33.545(5)
C13n/C12r?126.6733.157–33.058(3)
  • Bioevent ages of Wade et al. (2011) (1), and Berggren et al. (1995) (2), Magnetochron ages from Cande & Kent (1995) (3), and Vandenberghe et al. (2012) (4). Astronomical ages from Jovane et al. (2006) (5), and Jovane et al. (2010) (6).