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Species Globorotalia birnageae Blow 1959 | ||||||
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| Discussion / Comments: | ||||||
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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. |
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| 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
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| Stratigraphy - absolute ages: | ||||||
| FAD: 16.7 ± 0 [Ma], Berggren et al. (1995) |
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| References: | ||||||
Blow,W.H. (1959): Iaccarino,S. (1985): Chaisson,W.P. and Leckie,R.M. (1993): Berggren,W.A.; Kent,D.V.; Swisher,C.C. and Aubry,M.P. (1995): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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Taxon relations
Ranking (experimental) |
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