Rotalipora ticinensis Gandolfi 1942 from: Pflaumann, U.Krasheninnikov, V.. (1977): Early Cretaceous planktonic foraminifers from eastern North Atlantic, DSDP Leg 41 . In: Initial Reports of the Deep Sea Drilling Project 41 , Abidjan, Ivory Coast, to Malaga, Spain, February-April 1975 Eds: Gardner, J..Herring, J.. p. 539-564 . |
Notice: This catalogue page may contain unedited data.
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Species Rotalipora ticinensis Gandolfi 1942 |
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Diagnosis / Definition: |
Gasinski (1988):
Dimensions: D=0.35-0.65mm, t=0.18-0.32mm |
Discussion / Comments: |
Caron (1985):
R. ticinensis is considered to be the link in the lineage Ticinella praeticinensis - Rotalipiora subticinensis - R.ticinensis - R. appeninica. The morphological changes taking place during evolution are a gradual reduction in the number of chambers and a progressicve aquisition of a peripheral keel on all chambers of the last whorl.
Gasinski (1988):
Remarks: The investigated specimens are similar to those from the type
locality at Breggia. The palaeobiological significance of this species is also
supported by suggestions of Caron (1985) that it should be included in the
lineage T. praeticinensis-R. subticinensis--R. ticinensis. Specimens from the
so-called Trawne Beds (Gasinski, 1983) and Kapusnica Formation are
somewhat smaller (D=0.35-0.55 mm) than those from the Czorsztyn
succession (D = 0.42-0.65 mm).
Local stratigraphic range: Hedbergella assemblage Zone (FAD, unknown
here) to the top of R. ticinensis-P. buxtorfi Zone.
Pflaumann & Krasheninnikov (1977):
Small specimens attributed to this species are rare to few in
Sections 369A-43-1 to 41-3 (Rotalipora ticinensis Zone). |
Systematics: |
5 Classis Foraminifera
Familia Globotruncanidae
Genus Rotalipora
Species Rotalipora ticinensis
22 Familia Globotruncanidae
Genus Rotalipora
Species Rotalipora ticinensis
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Synonym list: |
Caron (1985):
Gasinski (1988):
Pflaumann & Krasheninnikov (1977):
1942 Globotruncana ticinensis Gandolfi. - Gandolfi : p.113 pl. 2, fig. 3a-c;
pl. 4, fig. 10, 11, 23;
pl. 5, fig. 2, 4 (typica)
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References: |
Gandolfi,R. (1942): Ricerche micropaleontologiche e stratigraphiche sulla Scaglia e sul Flysch cretacici dei dintorni di Balerna (Canton Ticino) . Rivista Italiana di PaleontologiaMemoria 4 p. 1-160
Pflaumann,U. and Krasheninnikov,V.. (1977): Early Cretaceous planktonic foraminifers from eastern North Atlantic, DSDP Leg 41 . In: Initial Reports of the Deep Sea Drilling Project 41 , Abidjan, Ivory Coast, to Malaga, Spain, February-April 1975 Eds: Gardner, J..Herring, J.. p. 539-564
Caron,M. (1985): Cretaceous planktic foraminifera. In: Plankton stratigraphy Eds: Bolli, H.M.Saunders, J.B.Perch-Nielsen, K. p. 17–86
Gasinski,M.A.. (1988): Foraminiferal biostratigraphy of the Albian and Cenomanian sediments in the Polish part of the Pieniny Klippen Belt, Carpathian Mountains. . Cretaceous Research Vol. 9 p. 217-247
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