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Species Tenuitellinata angustiumbilicata Bolli 1957


Discussion / Comments:
Chaisson & Leckie (1993):
Remarks: This very small species is occasionally common in the lower Miocene. Similar species: Tenuitellinata angustiumbilicata differs from Tenuitella clemenciae in possessing an umbilical, rather than an extraumbilical-umbilical aperture. T. angustiumbilicata differs from Globigerina quinqueloba in possessing a microperforate, rather than a macroperforate, test and in lacking the characteristic apertural flap of the latter taxon.
Systematics:

22
 Genus Tenuitellinata
  Species Tenuitellinata angustiumbilicata
Synonym list:
Spezzaferri & Silva (1990):
1957 Globigerina ciperoensis angustiumbilicata Bolli. - Bolli :
1987 Globigerina ciperoensis angustiumbilicata Bolli. - Qianyu : pl. 2; fig. 15, 17-19
1990 Tenuitellinata angustiumbilicata Bolli. - Spezzaferri & Silva : p.260 pl. XVIII; fig. 2a, d, 5a-d
Chaisson & Leckie (1993):
1957 Globigerina ciperoensis angustiumbilicata Bolli. - Bolli : p.109 pl. 22; fig. 12a-13c
1987 Tenuitellinata angustiumbilicata Bolli. - Qianyu : p.311 pl. 2; fig. 15 and 17-19
1993 Tenuitellinata angustiumbilicata Bolli. - Chaisson & Leckie : p.169 pl. 1; fig. 9
References:

Bolli,H.M. (1957):
Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I..
In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123

Qianyu,L.. (1987):
Origin, phylogenetic development and systematic taxonomy of the Tenuitella plexus (Globigerinitidae, Globigerinina) . J. Foraminiferal Res. Vol. 17(4) p. 298-320

Spezzaferri,S. and Silva,I.S.. (1990):
Oligocene planktonic foraminiferal biostratigraphy and paleoclimatic interpretation from Hole 538A, DSDP Leg 77, Gulf of Mexico . Palaeogeography, Palaeoclimatology, Palaeoecology Vol. 83 p. 217-263

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
Anonymous: Unedited TaxonConcept data
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