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Species Globigerina linaperta Finlay 1939


Alternative name:
Globigerina (Subbotina) linaperta Finlay 1939
Globigerina (Eoglobigerina) linaperta Finlay 1939
Diagnosis / Definition:
Bolli (1957):
Coiling random from the Globorotalia pseudomenardii zone to Globorotalia formosa formosa zone; a slight preference for dextral coiling was noted in the Globorotalia aragonensis zone. Largest diameter of figured hypotype 0.42 mm.
Discussion / Comments:
Bolli (1957):
Globigerina linaperta Finlay is probably a descendant of G. triloculinoides Plummer from which it is distinguished by its larger size and less distinct flaring lip protecting the aperture.
Jenkins (1985):
G. linaperta has distictive compressed chambers and a lipped aperture which distinguishes it from other species in the Middle and Late Eocene. In New Zealand G. linaperta ranges from the Middle Eocene Globigerinatheka index Zone to Globigerina linaperta Zone. It has a similar range at DSDP Leg 29 Sites 277 and 282 (Jenkins, 1971, 1975), and in South Australia (Lindsay, 1969)
Van Eijden & Smit (1991):
Remarks. Intermediate forms with G. eocaena Guembel, 1868 occur in the lower Eocene, and intermediate forms with G. angiporoides Hornibrook, 1965 occur in the upper Eocene/lower Oligocene.
Quilty (1976):
Only two fragmentary specimens were recovered. Neither is figured.
Systematics:

20
 Genus Globigerina
  Species Globigerina linaperta

24
  Genus Globigerina
   Species Globigerina linaperta

32
 Ordo Foraminiferida
  Familia Globigerinidae
   Genus Globigerina
    Species Globigerina linaperta
Synonym list:
Bolli (1957):
1939 Globigerina linaperta Finlay. - Finlay : p. 125 pl. 13, figs. 54-57
1952 Globigerina linaperta Finlay. - Brönnimann : pp. 16-17 pl. 2, figs. 7-9
1957 Globigerina linaperta Finlay. - Bolli : pl. 15, figs. 15-17
Bolli (1957):
1939 Globigerina linaperta Finlay. - Finlay : p. 125 pl. 13, figs. 54-57
1952 Globigerina linaperta Finlay. - Brönnimann : pp. 16-17 pl. 2, figs. 7-9
1957 Globigerina linaperta Finlay. - Bolli : p. 273 pl. 36, figs. 5a-b
1957 Globigerina linaperta Finlay. - Bolli : p. 70 pl. 15, figs. 15-17
Jenkins (1985):
1939 Globigerina linaperta Finlay. - Finlay : p.125 pl. 23, figs. 54-57
1985 Globigerina linaperta Finlay. - Jenkins : p.273 figs. 6.2; 5
Van Eijden & Smit (1991):
1939 Globigerina linaperta Finlay. - Finlay : p.125 pl. 3, figs. 54-56
1991 Globigerina linaperta Finlay. - Van Eijden & Smit : p.110
Quilty (1976):
1939 Globigerina linaperta Finlay. - Finlay : p.125 pl. 13, fig. 54-57
1976 Globigerina linaperta Finlay. - Quilty : p.638
Was used in synonym list of:
Subbotina triloculinoides Plummer 1926
Subbotina linaperta Finlay 1939
Subbotina patagonica Todd & Kniker 1952
References:

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

Finlay,H.J. (1939):
New Zealand foraminifera: key species in stratigraphy No. 2 . Trans. Proc. R. Soc. N.Z. Vol. 69 p. 89-128

Brönnimann,P. (1952):
Trinidad Paleocene and lower Eocene Globigerinidae . Bulletins of American paleontology Vol. 34(143) p. 1-34

Bolli,H.M. (1957):
The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad, B.W.I . Bulletin of the U.S. National Museum Vol. 215 p. 61-82

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

Bolli,H.M. (1957):
Planktonic Foraminifera from the Eocene Navet and San Fernando formations of Trinidad, B.W.I. . Bull. U.S. natl. Mus. Vol. 215 p. 155-172

Quilty,P.G.. (1976):
Planctonic foraminifera DSDP Leg 34- Nazca Plata . DSDP initial reports Vol. 34

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

Van Eijden,A.J.M. and Smit,J. (1991):
Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123
Anonymous: Unedited TaxonConcept data
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