Globorotalia miozea Finlay 1939 (TaxonConcept

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Species Globorotalia miozea Finlay 1939

Alternative name:

Globorotalia (Globoconella) miozea Finlay 1939

Discussion / Comments:

Jenkins (1985):
The distinguishing features of G. miozea are a thick walled and relatively narrow biconvex test, 5 chambers in the final whorl with strongly curved sutures on the spiral side and a low arched aperture. I believe G. miozea to have evolved from G. praescitula in the upper part of the Early Miocene by acquisition of a keel and a larger test; in New Zealand it ranges into the Middle Miocene (Jenkins, 1971). Ina shallow water continental shelf deposit of the same age of southeastern Australia, G. miozea is not present and has been considered to be a deeperwater thick walled ecophenotype of G. miotumida (Jenkins, 1975). G. miozea is common at DSDP Leg 29 Site 279 and also present at Site 281, while on Leg 40 Sites 360 and 362 it ranged into the Early Pliocene (Jenkins, 1975, 1978c).
Chaisson & Leckie (1993):
Remarks: Like Globorotalia cf. G. zealandica, very rare specimens of this temperate-latitude species occur in Hole 806B and, again like G. cf. G. zealandica, they are much smaller than typical temperate zone specimens. Similar species: See Globorotalia zealandica for comparison with that species. The angular, nearly keeled margin and highly vaulted umbilical side of G. cf. G. miozea distinguish it from G. praescitula. G. conoidea has a keel and raised sutures on its spiral side (Kennett and Srinivasan, 1983). The latter taxon was not observed in Hole 806B.

Systematics:

1
Superregnum Eukaryota
  Regnum Protoctista
   Phylum Ciliophora
    Subphylum Postciliodesmatophora
     Ordo Globigerinida
      Superfamilia Globorotaliaceae
       Superfamilia Nonionacea
        Familia Globorotaliidae
         Genus Globorotalia
          Species Globorotalia miozea

Synonym list:

Jenkins (1985):

1939 Globorotalia miozea Finlay. - Finlay : p.326 pl. 29, figs. 159-161

1985 Globorotalia miozea Finlay. - Jenkins : p.277 figs. 7.17; 5

Vincent & Toumarkine (1990):

1939 Globorotalia miozea Finlay. - Finlay : p. 326 figs. 159-161

1990 Globorotalia miozea Finlay. - Vincent & Toumarkine : p. 834 pl. 5, figs. 1-3

Chaisson & Leckie (1993):

1939 Globorotalia miozea Finlay. - Finlay : p.326 pl. 29; fig. 159-161

1983 Globorotalia (Globoconella) miozea Finlay. - Kennett & Srinivasan : p.112 pl. 24, fig. 2; pl. 26, fig. 1-3

1993 Globorotalia cf. miozea Finlay. - Chaisson & Leckie : p.172 pl. 4; fig. 12 and 17-18

Was used in synonym list of:

Globoconella miozea Finlay 1939

Globorotalia (Globoconella) miozea Finlay 1939

Stratigraphy - absolute ages:

FAD: 16.7 ± 0 [Ma], Berggren et al. (1995)
LAD: 15.9 ± 0 [Ma], Berggren et al. (1995)

References:

Finlay,H.J. (1939):
New Zealand foraminifera; key species in stratigraphy, No. 3 . Transactions of the Royal Society of New Zealand Vol. 69 p. 309-29

Finlay,H.J. (1939):
New Zealand foraminifera; key species in stratigraphy, No. 1 . Transactions of the Royal Society of New Zealand Vol. 68

Kennett,J. and Srinivasan,M.S. (1983):
Neogene Planktonic Foraminifera - A Phylogenetic Atlas.

Jenkins,D.G. (1985):
Southern mid-latitude Paleocene to Holocene planktic foraminifera.
In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 263-282

Vincent,E. and Toumarkine,M. (1990):
Neogene planktonic foraminifers from the Western Tropical Indian Ocean, Leg 115.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 115 Eds: Duncan, R.A..Backman, J.Peterson, L.C. p. 795-836

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

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