Table T2. Planktonic foraminifer stratigraphic events.
| Species event | Age (Ma) |
Polarity interval | Reference | Region |
|---|---|---|---|---|
| FO Neogloboquadrina pachyderma (s) (encrusted) | 1.78 | Top Olduvai | Weaver and Clement, 1987 | N. Atlantic |
| FO Globorotalia truncatulinoides | 2.08 | Base Olduvai | Spezzaferri, 1998 | N. Atlantic |
| FO Globorotalia inflata | 2.09 | Base Olduvai–Reunion | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| LO Globorotalia miocenica | 2.4 | Reunion–Gauss/Matuyama | Weaver and Clement, 1987 | N. Atlantic |
| LO Neogloboquadrina atlantica | 2.41 | Reunion–Gauss/Matuyama | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| LO Globorotalia puncticulata | 2.41 | Reunion–Gauss/Matuyama | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| Disappearance Globorotalia hirsuta | 3.18 | Base Kaena–top Mammoth | Weaver and Clement, 1987 | N. Atlantic |
| LO Sphaeroidinellopsis seminulina | 3.19 | Base Kaena–top Mammoth | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| Reappearance Globorotalia puncticulata | 3.31 | Lourens et al., 1996 | Mediterranean | |
| Disappearance Globorotalia puncticulata | 3.57 | Lourens et al., 1996 | Mediterranean | |
| LO Globorotalia margaritae | 3.81 | Base Gauss–Cochiti | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| LcO Globorotalia margaritae | 3.98 | Base Gauss–Cochiti | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| FO Globorotalia puncticulata | 4.52 | Nunivak | Weaver and Clement, 1987; Lourens et al., 1996 | N. Atlantic, Mediterranean |
| FO Globorotalia crassaformis | Nunivak | Weaver and Clement, 1987 | Mediterranean | |
| LO Globgerina nepenthes | 4.8–4.89 | Sidufjall | Weaver and Clement, 1987 | Mediterranean |
| FcO Globorotalia margaritae | 6 | C3A.1n | Sierro et al., 1993 | N. Atlantic |
| Alternating (s/d) Neogloboquadrina acostaensis | 6–6.3 | Below C3A.1n | Hodell et al., 2001 | N. Atlantic |
| LcO Globorotalia miotumida group | 6.3 | Below C3A.1n | ||
| First coiling change Neogloboquadrina acostaensis (s/d) | 6.3 | Below C3An.1n | Sierro et al., 1993, 2001; Hilgen et al., 1995; Krijgsman et al., 1995 | Atlantic, Mediterranean |
| Replacement Globorotalia menardii/Globorotalia miotumida | 7.24 | Below C3Bn | Sierro et al., 1993; Krijgsman et al., 1995 | Atlantic, Mediterreanean |
| FcO Globorotalia menardii (d) | 7.35 | Below C3Br.1n | Sierro et al., 1993; Krijgsman et al., 1995 | Atlantic |
| Coiling change Globorotalia scitula (s/d) | Sierro et al., 1993 | Atlantic | ||
| LcO Globorotalia menardii (s) | 7.51 | Below C3Br.2n | Krijgsman et al., 1995; Sierro et al., 1993 | Mediterranean, Atlantic |
| Neogloboquadrina acostaensis preferentially (s) | 6.3–7.8 | Krijgsman et al., 1999 | Mediterranean | |
| FO Neogloboquadrina humerosa | 8.2 | C4r.2r | Spezzaferri, 1998 | N. Atlantic |
| Alternating (s/d) in Neogloboquadrina sp. | 7.8–9.2 | Krijgsman et al., 1999 | Mediterranean | |
| Coiling in Neogloboquadrina (d/s) | 10 | Top C5n.2n | Hilgen et al., 2000 | Mediterranean |
| FrO Neogloboquadrina acostaensis s.s. | 10.55 | C5n.2n | Hilgen et al., 2000 | Mediterranean |
| LO Neogloboquadrina mayeri | 11.2 | Top C5r.2r | Hilgen et al., 2000 | Mediterranean |
| FO Globigerina nepenthes | 11.6 | C5r.3r | Spezzaferri, 1998 | N. Atlantic |
Notes: FO = first occurrence, LO = last occurrence, LcO = last common occurrence, FcO = first common occurrence, FrO = first rare occurrence. d = dextral, s = sinistral.
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