Globanomalina planoconica Subbotina 1953 from: Olsson, R.K.Berggren, W.A.Hemleben, C.Huber, B.T. (1999): Atlas of Paleocene planktonic foraminifera - online version. , Smithsonian Contributions to Paleobiology Vol. 85 p. 1-252 . |
Notice: This catalogue page may contain unedited data.
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Species Globanomalina planoconica Subbotina 1953 |
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Discussion / Comments: |
Pearson et al. (2006):
DISCUSSION.-
Blow (1979) regarded Globorotalia
pseudochapmani Gohrbandt, described from the lower
Eocene of Austria, as a junior synonym of
Globanomalina planoconica. Blow's illustrations of G.
planoconica from an Atlantic Ocean piston core match
Gohrbandt's illustrations of the holotype and paratype
of his species, which show an additional chamber in the
ultimate whorl and a broader apertural lip than the
holotype. Blow regarded his and Gohrbandt's specimens
as advanced morphotypes of planoconica. Additional
study may or may not show the validity of Gohrbandt's
species, but for the sake of taxonomic stability we follow
Blow's concept of planoconica. See the Atlas of
Paleocene Planktonic Foraminifera (Olsson and others,
1999) for further discussion of this species.
STRATIGRAPHIC RANGE.-
Zone P4c to Zone E6. |
Systematics: |
17 Genus Globanomalina
Species Globanomalina planoconica
35 Ordo Foraminiferida
Superfamilia Globigerinaceae
Familia Hedbergellidae
Genus Globanomalina
Species Globanomalina planoconica
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Synonym list: |
Olsson et al. (1999):
1953 Globorotalia planoconica Subbotina. - Subbotina : p. 263 holotype: pl. 17, figs. 4a-c; paratypes, figs. 5a-c, 6a-c (Caucasus, Kheu River, ser. F1, Zone of conical globorotaliids, lower to middle Eocene (probably upper Paleocene)
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References: |
Subbotina,N.N. (1953): Iskopaemye foraminifery SSSR (Globigerinidy, Khantkenininidy i Globorotaliidy) . Trudy Vsesoyznogo Nauchno-Issledovatel'skogo Geologo-razvedochnogo Instituta (VNIGRI) Vol. 76 p. 296
Olsson,R.K.; Berggren,W.A.; Hemleben,C. and Huber,B.T. (1999): Atlas of Paleocene planktonic foraminifera - online version. , Smithsonian Contributions to Paleobiology Vol. 85 p. 1-252
Pearson,P.N.; Olsson,R.K.; Hemleben,C.; Huber,B.T. and Berggren,W.A. (2006): Atlas of Eocene Planktonic Foraminifera. p. 1-513
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