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Globorotalia birnageae Blow 1959 from: Chaisson, W.P.Leckie, R.M. (1993): High-Resolution Planktonic Foraminifer Biostratigraphy of Site 806, Ontong Java Plateau (Western Equatorial Pacific). In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 130 Eds: Berger, W.H.Kroenke, L.W..Mayer, L.A..et al. p. 137-178
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Anonymous: Unedited TaxonConcept data
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Species Globorotalia birnageae Blow 1959


Alternative name:
Discussion / Comments:
Iaccarino (1985):
This species is characterized by its small size, closed umbilicus, tight coiling and well developed apertural lip. The last chamber is often smaller than the previous one. It is very useful in the Mediterranean area for recognizing the Early to early Middle Miocene.
Chaisson & Leckie (1993):
Similar species: Globorotalia birnageae is distinguished from G. peripheroronda by its generally smaller size and nearly circular equatorial outline.
Systematics:

1
 Superregnum Eukaryota
  Regnum Protoctista
   Phylum Ciliophora
    Subphylum Postciliodesmatophora
     Ordo Globigerinida
      Superfamilia Globorotaliaceae
       Superfamilia Nonionacea
        Familia Globorotaliidae
         Genus Globorotalia
          Species Globorotalia birnageae
Synonym list:
Iaccarino (1985):
1959 Globorotalia birnageae Blow. - Blow : p.210 pl. 17, figs. 108a-c
1985 Globorotalia birnageae Blow. - Iaccarino : p.305 figs. 6.14a-c; 4
Chaisson & Leckie (1993):
1959 Globorotalia birnageae Blow. - Blow : p.210 pl. 17; fig. 108a-c
1993 Globorotalia birnageae Blow. - Chaisson & Leckie : p.172 pl. 4; fig. 19-22
Was used in synonym list of:
Stratigraphy - absolute ages:
FAD: 16.7 ± 0 [Ma], Berggren et al. (1995)
References:

Blow,W.H. (1959):
Age, correlation and biostratigraphy of the upper Tocuyo (San Lorenzo) and Pozón Formations, eastern Falcon, Venezuela . Bull. Am. Paleontol. Vol. 39(178) p. 67-252

Iaccarino,S. (1985):
Mediterranean Miocene and Pliocene planktic foraminifera.
In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 283-314

Chaisson,W.P. and Leckie,R.M. (1993):
High-Resolution Planktonic Foraminifer Biostratigraphy of Site 806, Ontong Java Plateau (Western Equatorial Pacific).
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 130 Eds: Berger, W.H.Kroenke, L.W..Mayer, L.A..et al. p. 137-178

Berggren,W.A.; Kent,D.V.; Swisher,C.C. and Aubry,M.P. (1995):
A revised Cenozoic Geochronology and Chronostratigraphy.
In: Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication Vol. 54
Anonymous: Unedited TaxonConcept data
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