Late cretaceous, larger, complex miliolids (foraminifera) endemic in the Pyrenean faunal province

Hottinger, Lukas; Drobne, Katica; Caus, Esmeralda

doi:10.1007/bf02536833

Cited by 46 publications

(67 citation statements)

References 8 publications

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“…is the Alveolinoidea (superfamily Alveolinoidea Ehrenberg, 1839). The Late Cretaceous alveolinoids of the Caribbean and western Tethys paleobioprovinces are well known (see Reichel, 1933Reichel, , 1937Reichel, , 1941Reichel, , 1947Colalongo, 1963;Pêcheux, 1984Pêcheux, , 2002Schroeder and Neumann, 1985;Hottinger et al, 1989;Fleury and Fourcade, 1990;Calonge et al, 2002;Vicedo et al, 2009Vicedo et al, , 2013Vicedo and Serra-Kiel, 2011 among others), but the representative of this group in the south and southwest margin of the Tethys call for detailed architectural studies.…”

Section: Introductionmentioning

confidence: 98%

New Alveolinoidea (Foraminifera) from the Cenomanian of Oman

Piuz

Meister

Vicedo

2014

Cretaceous Research

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Section: Introductionmentioning

confidence: 98%

New Alveolinoidea (Foraminifera) from the Cenomanian of Oman

Piuz

Meister

Vicedo

2014

Cretaceous Research

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“…The large Santonian and Campanian meandropsinids such as Palandrosina, Spirapertolina, Larrazetia and Fal lotia are restricted to the Pyrenean province ). Representatives of the Cretaceous Fabulariidae, the Lacazina species, are fo und in both provinces, although they are much more diversified in the Pyrenean domain (Hottinger et al, 1989).…”

Section: Late Cretaceous Gcm Cyclementioning

confidence: 99%

Mid-Cenomanian separation of Atlantic and Tethyan domains in Iberia by a land-bridge: The origin of larger foraminifera provinces?

Caus

Bernaus

Calonge

et al. 2009

Palaeogeography, Palaeoclimatology, Palaeoecology

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Keywords: Larger foraminifera Global Community Maturation cycles Paleobioprovinces Middle and Late Cretaceous IberiaThe Middle and Late Cretaceous shallow-water carbonate platforms widely exposed across the eastern half of the Iberian Peninsula including the Betic Cordillera, the Iberian Ranges and the Pyrenees provides an excellent material for analyzing the origin of two Iberian Late Cretaceous larger foraminifera provinces, the Betic and the Pyrenean: the former corresponds to the Tethyan domain, the latter to the Atlantic domain. The spatiotemporal distribution in the three studied areas of the larger foraminifera k-strategists, the Alveolinaceans, from the latest Albian-Cenomanian time interval suggests that separation of the two faunal provinces started during Early Cenomanian (mid-Cretaceous Global Community Maturation cycle), and the shelves of the Iberian seaway formed the boundaries of the corresponding bioprovinces. This occurred before the Betic-Pyrenean communication near the Middle-Late Cenomanian transition was interrupted by a land bridge. Therefore, the separation of the two bioprovinces cannot be due to the physical barrier created by the opening or closure of the shallow seaway across the Iberia: here it is attributed to the differences in the ecological gradients. At the end of the Cenomanian, the Cenomanian-Turonian eutrophication event eliminated all the k-strategist larger foraminifera to such a degree that all their essential k-strategy information was lost. The newly arising k-strategist foraminifera needed a considerable time (8-10 my) to recover their lost genetic complexity: this occurred during the Coniacian in the following GCM cycle.

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“…The axis in the primitive forms is rotated so that an angle of 72° exists between the median planes of consecutive chambers in a quinqueloculine test, or 120° in a triloculine test or 180° in a spiroloculine or biloculine test. These forms evolved in turn to genera with streptospiral early coiling (e.g Pseudonummuloculina) (see Hottinger, Drobne and Caus 1989), but that were planispiral in the adult part and spherical to fusiform in shape (see Fig. 6.25).…”

Section: The Miliolides Of the Paleogenementioning

confidence: 99%

Evolution and Geological Significance of Larger Benthic Foraminifera

2018

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Late cretaceous, larger, complex miliolids (foraminifera) endemic in the Pyrenean faunal province

Cited by 46 publications

References 8 publications

New Alveolinoidea (Foraminifera) from the Cenomanian of Oman

New Alveolinoidea (Foraminifera) from the Cenomanian of Oman

Mid-Cenomanian separation of Atlantic and Tethyan domains in Iberia by a land-bridge: The origin of larger foraminifera provinces?

Evolution and Geological Significance of Larger Benthic Foraminifera

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