Sur la présence de rhyncholites dans le Lias et le Dogger des Préalpes médianes romandes (Suisse)

Septfontaine, Michel

doi:10.1007/bf02990631

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…Foraminiferal zones established for the Aalenian–Bajocian boundary in different areas of the Northern Hemisphere (1–11) compared to foraminiferal zonations established for the Lusitanian Basin (12; modified after Canales and Henriques, ; Silva, ). (1) SW Germany (Frentzen, ); (2) Sicily, S Italy (Barbieri, ); (3) Mountains, France, and Pre‐Alps, Switzerland (Septfontaine, ; Wernli and Septfontaine, ); (4) S Sweden (Norling, ); (5) Grand Banks, Canada (Exton and Gradstein, ) (6) Lusitanian Basin, Portugal, and Grand Banks, Canada (Exton and Gradstein, ); (7) N Wales (Copestake and Johnson, ); (8) S Rif, Morocco (Boutakiout, ) (mg: morphogenus); (9) W Carpathians, Poland (Tyszka, ); (10) Basque–Cantabrian Basin, N Spain (Canales, ); (11) Middle Atlas, Morocco (Bejaji et al ., ); (12) Murtinheira (GSSP Bajocian) section (Canales and Henriques, ) and Serra da Boa Viagem II section (Silva, ) in the Lusitanian Basin, Portugal; (A) Astacolus dorbignyi Zone.…”

Section: Discussionmentioning

confidence: 99%

High resolution ammonite–benthic foraminiferal biostratigraphy across the Aalenian–Bajocian boundary in the Lusitanian Basin (Portugal)

2014

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This work describes the ammonite and benthic foraminiferal assemblages recorded across the Aalenian-Bajocian boundary of the Serra da Boa Viagem II section, located about 6 km to the east of the Bajocian GSSP (Murtinheira, Portugal), and calibrated to the standard ammonite zonation previously established for the Lusitanian Basin. A total of 220 ammonite specimens referred to 30 fossiliferous levels were collected and identified throughout the section, enabling the recognition of the Concavum Zone (Concavum and Limitatum subzones) of the upper Aalenian, and the Discites Zone of the lower Bajocian. A total of 2356 foraminifers were obtained from the 16 samples collected along the section, corresponding to 4 suborders, 8 families, 16 genera and 44 species.The occurrence of Lenticulina quenstedti (Gümbel) has enabled the recognition of the Lenticulina quenstedti Zone, ranging from the Bradfordensis Zone (middle Aalenian) to the lower Discites Zone (lower Bajocian). The first record of Ramulina spandeli Paalzow, whose occurrence, up to now, was limited in the Lusitanian Basin to the Murtinheira section (the Bajocian GSSP), highlights the usefulness of the Ramulina spandeli Zone, with its lower boundary referred to the lower Discites Zone (lower Bajocian). Other bioevents displaying local, basinal or regional biostratigraphic interest have also been identified.The benthic foraminiferal record here presented, accurately calibrated with the ammonite record, aims at contributing to support the recognition of the Lenticulina quenstedti Zone and the Ramulina spandeli Zone as formal biostratigraphic units integrating the biostratigraphic scale based on benthic foraminifers for the Aalenian-Bajocian boundary in the Lusitanian Basin (Portugal). Figure 3. Lithological succession of the Serra da Boa Viagem II section, biostratigraphic units based on ammonites and occurrence of the identified ammonite taxa along the section.Figure 5. Lithological succession at the Serra da Boa Viagem II section and biostratigraphic units based on ammonites and benthic foraminifers. The occurrence and relative abundance of the identified foraminiferal taxa recorded along the studied stratigraphic interval are represented by dots with different diameter (R. s.: Ramulina spandeli Zone).

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Section: Discussionmentioning

confidence: 99%

High resolution ammonite–benthic foraminiferal biostratigraphy across the Aalenian–Bajocian boundary in the Lusitanian Basin (Portugal)

2014

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“…Foraminiferal zones (1) established in this work, compared to foraminiferal zonations in other areas. 2-Lusitanian Basin, Portugal, and Grand Banks, Canada (Exton and Gradstein, 1984); 3-Basque-Cantabrian Basin, N Spain (Canales, 2001); 4-Sicily, S Italy (Barbieri, 1964); 5-Jura Mountains, France, and Pre-Alps, Switzerland (Septfontaine, 1971;Wernli and Septfontaine, 1971); 6-W Carpathians, Poland (Tyszka, 1999); 7-SW Germany (Frentzen, 1941); 8-N Wales (Copestake and Johnson, 1984); 9-S Sweden (Norling, 1972); 10-Sweden (Grigelis and Norling, 1999); 11-Grand Banks, Canada (Gradstein, 1977(Gradstein, , 1978; 12-S Rift, Morocco (Boutakiout, 1990); 13-Middle Atlas, Morocco (Bejaji and others, 2010). able changes in the relative abundance of some taxa, as well as variations in the foraminiferal diversity recorded in some assemblages.…”

Section: Foraminiferal Bioeventsmentioning

confidence: 99%

Foraminiferal Assemblages From the Bajocian Global Stratotype Section and Point (Gssp) at Cape Mondego (Portugal)

Canales¹,

Henriques²

2013

The Journal of Foraminiferal Research

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“…Genus Paalzowella Cushman, 1933 Paalzowella turbinella (Gümbel, 1862) Family Paravalvulinidae Banner, Simmone & Whittaker, 1991Genus Redmondoides Banner, Simmons & Whittaker, 1991 Redmondoides lugeoni (Septfontaine, 1977) Family Telamminidae Loeblich & Tappan 1985Genus Troglotella Wernli & Fookes, 1992 Troglotella incrustans (Wernli & Fookes, 1992) Family Textulariopsidae Loeblich & Tappan, 1982Genus Haghimashella Neagu & Neagu, 1995Haghimashella cf. arcuata (Haeusler, 1890 è è à…”

Section: Appendixmentioning

confidence: 99%

Foraminiferal assemblage in the coral-bearing limestones of the Vršatec area (Pieniny Klippen Belt, Western Carpathians, Slovakia)

Morycowa¹,

Olszewska²

2013

Geologica Carpathica

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The paper deals with benthic foraminifera occurring with the scleractinian corals in the Jurassic biohermal and peribiohermal coral-bearing limestones of the Vršatec area (Czorsztyn Succession, Slovak Pieniny Klippen Belt). The coral community is dominated by branching forms of the genus Thecosmilia. Co-occurring abundant benthic foraminifera belong to the species Rumanolina seiboldi, R. elevata, Paalzowella turbinella and Troglotella incrustans. The coral-bearing limestones were initially assigned to the Oxfordian on the basis of the microfacies analyses and bivalve and scleractinian faunas. In recent papers they are assigned to the Bajocian on the basis of ammonites found in the neptunic dykes and stratigraphic superimposition criteria. However, the stratigraphic distribution of the majority of the identified foraminifera indicates that like most scleractinian coral taxa they are not known earlier than in the Late Jurassic. The Late Jurassic age of these coral-bearing limestones is also suggested by an encrusting microproblematic organism Iberopora bodeuri.

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Sur la présence de rhyncholites dans le Lias et le Dogger des Préalpes médianes romandes (Suisse)

Abstract: Pal~iont. Z.

Cited by 12 publications

References 3 publications

High resolution ammonite–benthic foraminiferal biostratigraphy across the Aalenian–Bajocian boundary in the Lusitanian Basin (Portugal)

High resolution ammonite–benthic foraminiferal biostratigraphy across the Aalenian–Bajocian boundary in the Lusitanian Basin (Portugal)

Foraminiferal Assemblages From the Bajocian Global Stratotype Section and Point (Gssp) at Cape Mondego (Portugal)

Foraminiferal assemblage in the coral-bearing limestones of the Vršatec area (Pieniny Klippen Belt, Western Carpathians, Slovakia)

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