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Species Rotalipora ticinensis Gandolfi 1942


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
Synonym list:
Caron (1985):
1942 Globotruncana ticinensis Gandolfi. - Gandolfi : pl 2 figs 3a-c (type reference)
1985 Rotalipora ticinensis Gandolfi. - Caron : p.73 33.3-4
Gasinski (1988):
1942 Globotruncana ticinensis Gandolfi. - Gandolfi : p.113 pl. 2, fig. 3; pl. 4, fig. 10, 11
1988 Rotalipora ticinensis Gandolfi. - Gasinski : p.236 fig. 14e-g, j
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)
1977 Rotalipora ticinensis Gandolfi. - Pflaumann & Krasheninnikov : p.562 pl. 6; fig. 1, 2
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
Anonymous: Unedited TaxonConcept data
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