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Journal Article

La position stratigraphique de Globotruncana helvetica Bolli en Tunisie

Ernest Schijfsma
Published: 01 October 1955
Micropaleontology (1955) 1 (4): 321–334.
...Ernest Schijfsma Abstract The macrofaunas of Turonian and lower Senonian (Cretaceous) sections in a number of localities in Tunisia indicate that the Globotruncana helvetica zone is lower Coniacian (basal Senonian), rather than lower Turonian, in age. GeoRef, Copyright 2004, American Geological...
View PDF for article title, La position stratigraphique de Globotruncana <span class="search-highlight">helvetica</span> Bolli en Tunisie
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Evolution of Helvetoglobotruncana helvetica showing variation of pustulose wall texture, evolutionary progression in flattening and smoothing of dorsal chamber surface, elevation of the spiral suture, and thickening of pustulose keel, which is penetrated by wall pores even in the most evolutionarily advanced form (Fig. 1d). 1Hv. helvetica, Sample TDP 31-26-1, 40–60 cm (extinction level). 2Hv. praehelvetica transitional to Hv. helvetica Sample TDP 31-57-1, 70–90 cm. 3Helvetoglobotruncana praehelvetica, Sample TDP 22-9-1, 79–96 cm. 4Whiteinella aprica, Sample TDP 22-11-1, 33–46 cm.

Evolution of Helvetoglobotruncana helvetica showing variation of pustulos...

Published: 01 January 2014
Figure 4 Evolution of Helvetoglobotruncana helvetica showing variation of pustulose wall texture, evolutionary progression in flattening and smoothing of dorsal chamber surface, elevation of the spiral suture, and thickening of pustulose keel, which is penetrated by wall pores even in the most
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Percent abundance of Helvetoglobotruncana praehelvetica, Hv. helvetica, and transitional forms at TDP Site 31 plotted relative to the total planktic foraminiferal assemblages and relative to each other.

Percent abundance of Helvetoglobotruncana praehelvetica, Hv. helvetica , a...

Published: 01 January 2014
Figure 6 Percent abundance of Helvetoglobotruncana praehelvetica, Hv. helvetica , and transitional forms at TDP Site 31 plotted relative to the total planktic foraminiferal assemblages and relative to each other.
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Helvetoglobotruncana helvetica (Bolli, 1945); all scale bars = 50 μm. 1 Holotype (reproduced from Bolli, 1945, pl. 9, figs. 6–8). 2 DSDP 463-33-2, 52–54 cm. 3 DSDP 463-34-1, 79–81 cm. 4 DSDP 463-33-2, 52–54 cm. 5 ODP 1050C-20R-3, 38–41 cm (reproduced from Huber et al., 1999, pl. 2, figs. 4, 5). 6 TDP 31-57-1, 70–90 cm. 7 TDP 22-8, 33–55 cm. 8 TDP 31-57-1, 20–40 cm. 9 ODP 763B-21X-2, 65–67 cm. 10 TDP 30-45-1, 27–45 cm.

Helvetoglobotruncana helvetica ( Bolli, 1945 ); all scale bars = 50 μm. 1...

Published: 01 January 2014
Figure 11 Helvetoglobotruncana helvetica ( Bolli, 1945 ); all scale bars = 50 μm. 1 Holotype (reproduced from Bolli, 1945 , pl. 9, figs. 6–8 ). 2 DSDP 463-33-2, 52–54 cm. 3 DSDP 463-34-1, 79–81 cm. 4 DSDP 463-33-2, 52–54 cm. 5 ODP 1050C-20R-3, 38–41 cm (reproduced from Huber et al
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Bernoullia helvetica from the locality of Thale (Harz region). Richter Collection, National Museum of Natural History, Stockholm. Photograph by Waltraud Harre.

Bernoullia helvetica from the locality of Thale (Harz region). Richter Col...

Published: 01 October 2008
Figure 12. Bernoullia helvetica from the locality of Thale (Harz region). Richter Collection, National Museum of Natural History, Stockholm. Photograph by Waltraud Harre.
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Foraminifera

Foraminifera 1.1: Helvetoglobotruncana helvetica (Bolli), well Kirkuk-11...

Published: 01 April 2007
Plate 1: Foraminifera 1.1: Helvetoglobotruncana helvetica (Bolli), well Kirkuk-117 (1,742 m), lower part of the Kometan Formation, sequence B1, axial section, X93. 1.2: Dicarinella primitive (Dalbiez), well Kirkuk-116 (1,813 m), middle part of the Kometan Formation, sequence B2, semiaxial
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figs 1, 2.Cymbella spec. cf. helvetica Kützing. figs 3-5.Cymbella lange-bertalotii Krammer. fig. 6.Cymbella vulgata Krammer. figs 7, 8. Cymbella neoleptoceros var. tenuistriata Krammer. fig. 9. Cymbella pervarians Krammer. figs 10, 11.Cymbella cf. subtruncata Krammer. All LM micrographs (magnification × 1500).

figs 1, 2. Cymbella spec. cf. helvetica Kützing. figs 3-5. Cymbella l...

Published: 01 November 2003
Explanation of Plate 4. figs 1, 2. Cymbella spec. cf. helvetica Kützing. figs 3-5. Cymbella lange-bertalotii Krammer. fig. 6. Cymbella vulgata Krammer. figs 7, 8 . Cymbella neoleptoceros var. tenuistriata Krammer. fig. 9 . Cymbella pervarians Krammer. figs 10, 11. Cymbella cf
Journal Article

EVOLUTION AND TAXONOMIC STUDY OF THE CRETACEOUS PLANKTIC FORAMINIFERAL GENUS HELVETOGLOBOTRUNCANA REISS, 1957

Brian T. Huber, Maria Rose Petrizzo
Published: 01 January 2014
Journal of Foraminiferal Research (2014) 44 (1): 40–57.
DOI: https://doi.org/10.2113/gsjfr.44.1.40
...Figure 4 Evolution of Helvetoglobotruncana helvetica showing variation of pustulose wall texture, evolutionary progression in flattening and smoothing of dorsal chamber surface, elevation of the spiral suture, and thickening of pustulose keel, which is penetrated by wall pores even in the most...
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View PDF for article title, EVOLUTION AND TAXONOMIC STUDY OF THE CRETACEOUS PLANKTIC FORAMINIFERAL GENUS HELVETOGLOBOTRUNCANA REISS, 1957
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Helvetoglobotruncana praehelvetica (Trujillo, 1960); all scale bars = 50 μm unless noted otherwise. 1 Holotype, UCMP 48790 (SEM images courtesy of UCMP). 2 Paratype UCMP 48791 (SEM images courtesy of UCMP). 3 DSDP 463-35-1, 17–19 cm, within the Hv. helvetica Zone; 3d, close-up of raised pustules along peripheral margin and suture of penultimate chamber. 4 DSDP 463-35-1, 17–19 cm, within the Hv. helvetica Zone. 5 TDP 31-63-1, 29–49 cm, within the Hv. helvetica Zone. 6 TDP 31-63-1, 29–49 cm, within the Hv. helvetica Zone. 7 TDP 22-2-1, 79–96 cm, within the Hv. helvetica Zone. 8 TDP 31-38-1, 29–49 cm, within the Hv. helvetica Zone; 8c, close-up of second chamber of final whorl showing perforate peripheral margin and coalescing pustules that are subparallel to the equatorial periphery.

Helvetoglobotruncana praehelvetica ( Trujillo, 1960 ); all scale bars = 50...

Published: 01 January 2014
Figure 10 Helvetoglobotruncana praehelvetica ( Trujillo, 1960 ); all scale bars = 50 μm unless noted otherwise. 1 Holotype, UCMP 48790 (SEM images courtesy of UCMP). 2 Paratype UCMP 48791 (SEM images courtesy of UCMP). 3 DSDP 463-35-1, 17–19 cm, within the Hv. helvetica Zone; 3d, close
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Specimens of Planoheterohelix postmoremani n. gen., n. sp. 1–3 Holotype from the lower Turonian (Helvetoglobotruncana helvetica Biozone) of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534393). 4–6 Paratype from the lower Turonian (Helvetoglobotruncana helvetica Biozone) of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534394). 7–8 Hypotype from the lower Turonian (Helvetoglobotruncana helvetica Biozone), ODP Hole 1050C, Sample 20–4, 110–111 cm. 9–11 Paratype from the lower Turonian (Helvetoglobotruncana helvetica Biozone) of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534395).

Specimens of Planoheterohelix postmoremani n. gen., n. sp. 1–3 Holotype f...

Published: 01 October 2009
PLATE 5 Specimens of Planoheterohelix postmoremani n. gen., n. sp. 1–3 Holotype from the lower Turonian ( Helvetoglobotruncana helvetica Biozone) of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534393). 4–6 Paratype from the lower Turonian
Journal Article

EVOLUTION AND PHYLOGENY OF MID-CRETACEOUS (ALBIAN–CONIACIAN) BISERIAL PLANKTIC FORAMINIFERA

Shannon J. Haynes, Brian T. Huber, Kenneth G. Macleod
Published: 01 January 2015
Journal of Foraminiferal Research (2015) 45 (1): 42–81.
DOI: https://doi.org/10.2113/gsjfr.45.1.42
... foraminiferal Rotalipora cushmani Zone (latest Cenomanian), Helvetoglobotruncana helvetica Zone (early Turonian), and at the Helvetoglobotruncana helvetica-Marginotruncana schneegansi zonal boundary (middle Turonian). 3 Correspondence author. E-mail: [email protected] 04 11 2013 18 8...
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Turonian planktic foraminifera from the Eagle Ford Group of south Texas. 1Whiteinella aprica BC-40, 9.8 m; 2Helvetoglobotruncana praehelvetica BC-19, 4.0 m; 3H. helvetica BC-25, 4.9 m; 4H. helvetica BC-35, 7.9 m; 5Praeglobotruncana stephani BC-18, 3.7 m; 6Dicarinella primitiva BC-18, 3.7 m. All scale bars are 100 μm.

Turonian planktic foraminifera from the Eagle Ford Group of south Texas. 1...

Published: 01 April 2017
Figure 10.  Turonian planktic foraminifera from the Eagle Ford Group of south Texas. 1 Whiteinella aprica BC-40, 9.8 m; 2 Helvetoglobotruncana praehelvetica BC-19, 4.0 m; 3 H. helvetica BC-25, 4.9 m; 4 H. helvetica BC-35, 7.9 m; 5 Praeglobotruncana stephani BC-18, 3.7 m; 6
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Specimens of Globoheterohelix paraglobulosa n. gen., n. sp. (1–8) and “Heterohelix globulosa” Ehrenberg, 1840 (9–12). 1–3 Paratype of G. paraglobulosa from the lower Turonian (Helvetoglobotruncana helvetica Biozone) sediments of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534403). 4–6 Paratype of G. paraglobulosa from the lower Turonian (Helvetoglobotruncana helvetica Biozone) sediments of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534404). 7–8 Paratype of G. paraglobulosa from the lower Turonian (Helvetoglobotruncana helvetica Biozone) sediments of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534405). 9–12 Hypotype “H. globulosa” from the upper Cenomanian (Rotalipora cushmani Biozone) of the western North Atlantic (Blake Plateau), ODP Hole 1050C, Sample 21–01, 72–73 cm.

Specimens of Globoheterohelix paraglobulosa n. gen., n. sp. (1–8) and “ H...

Published: 01 October 2009
PLATE 7 Specimens of Globoheterohelix paraglobulosa n. gen., n. sp. (1–8) and “ Heterohelix globulosa ” Ehrenberg, 1840 (9–12). 1–3 Paratype of G. paraglobulosa from the lower Turonian ( Helvetoglobotruncana helvetica Biozone) sediments of the equatorial Pacific (Mid-Pacific Mountains
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Correlation of Cenomanian–Campanian δ13C events between the Western Interior Basin (this study), Japan (Takashima et al. 2010), and the English Chalk reference curve (Jarvis et al. 2006). The ages of the δ13C events are determined using the new Western Interior composite curve and assigned to the corresponding levels in the curves from Japan and England. First (FO) and last (LO) occurrence levels of planktonic foraminifera species are from Takashima et al. (2010). Abbreviations: R. cushimani, Rotalipora cushimani; H. Helvetica, Helvetoglobotruncana helvetica; M. marianosi, Marginotruncana marianosi; M. sinuosa, Marginotruncana sinuosa.

Correlation of Cenomanian–Campanian δ 13 C events between the Western Inter...

Published: 01 July 2014
and assigned to the corresponding levels in the curves from Japan and England. First (FO) and last (LO) occurrence levels of planktonic foraminifera species are from Takashima et al. (2010) . Abbreviations: R. cushimani , Rotalipora cushimani ; H. Helvetica , Helvetoglobotruncana helvetica ; M. marianosi
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Comparison of δ66Zn and δ13Ccarb (carb—carbonate) plots from the Gongzha section (southern Tibet) and Eastbourne section (southern UK) (Sweere et al., 2018). Error bars on the δ66Zn plot represent 2σ. Yellow box area and blue band show Oceanic Anoxic Event 2 (OAE 2) and Plenus Cold Event (PCE) intervals, respectively. Bold gray curves show trends of δ66Zn plots. δ7Li (Pogge von Strandmann et al., 2013) and Δ13C (Jarvis et al., 2011) plots from Eastbourne are also presented. H. helvetica—Helvetoglobotruncana helvetica.

Comparison of δ 66 Zn and δ 13 C carb (carb—carbonate) plots from the Gong...

Published: 25 November 2020
Cold Event (PCE) intervals, respectively. Bold gray curves show trends of δ 66 Zn plots. δ 7 Li ( Pogge von Strandmann et al., 2013 ) and Δ 13 C ( Jarvis et al., 2011 ) plots from Eastbourne are also presented. H . helvetica — Helvetoglobotruncana helvetica .
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Comparison of dorsal views and wall microstructure of microdissected specimens of Helvetoglobotruncana praehelvetica and Hv. helvetica. 1Hv. helvetica, TDP 31-63-3, 26–45 cm: 1b, same specimen as 1a showing breakage through ultimate chamber and distribution of wall pores; 1c, close-up of dorsal peripheral keel; 1d, close-up through umbilical chamber pustule showing microlayering with clay infilling on either side of pustule (within boxes). 2Hv. helvetica, TDP 31-63-2, 26–45 cm: 2b, same specimen as 2a showing breakage through penultimate chamber and distribution of wall pores that penetrate inside portion of microlayered pustule; 2c, d, same specimen as 2a showing breakage through ultimate chamber and distribution of wall pores that penetrate microlayered pustulose keeled margin. 3 Hv. praehelvetica, TDP 22-33-3, 10–30 cm: 3b, breakage across dorsal peripheral margin of penultimate chamber showing scattered distribution and straight-sided cross sections of wall pores penetrating pustulose keeled margin; 3c, d, breakage of umbilical side of penultimate chamber showing interior wall microstructure, pore distribution, and parallel-sided pore cross section.

Comparison of dorsal views and wall microstructure of microdissected specim...

Published: 01 January 2014
Figure 9 Comparison of dorsal views and wall microstructure of microdissected specimens of Helvetoglobotruncana praehelvetica and Hv. helvetica . 1 Hv. helvetica , TDP 31-63-3, 26–45 cm: 1b, same specimen as 1a showing breakage through ultimate chamber and distribution of wall pores; 1c
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fig. 1. Holotype of Fingeria loetterlei (Nauss, 1947) originally figured as Globigerina loetterlei (Nauss, 1947, pl. 49, fig. 11) from the Lloydminster shale of the Clonmel Well No. 1 (Vermilion Area, Alberta, Canada). fig. 2. Holotype of Hedbergella murphyi (Marianos &amp; Zingula, 1966, pl. 38, fig. 5) from the Turonian of the Dry Creek, Tehama County, California (USA). fig. 3. Holotype of H. bornholmensis (Douglas &amp; Rankin, 1969, fig. 6 A–C) from the Bavnodde Greensand (Denmark). fig. 4. Hypotype of F. loetterlei from the lower Turonian sediments (H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm. fig. 5. Hypotype of F. loetterlei (Marianos &amp; Zingula, 1966) from the lower Turonian sediments (H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm. fig. 6. Hypotype of F. loetterlei from the lower Turonian sediments (H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm.

fig. 1 . Holotype of Fingeria loetterlei ( Nauss, 1947 ) originally figur...

Published: 01 December 2010
sediments ( H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm. fig. 5 . Hypotype of F. loetterlei ( Marianos & Zingula, 1966 ) from the lower Turonian sediments ( H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP
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fig. 1. Holotype of Fingeria kingi (Trujillo, 1966) originally figured as Rugoglobigerina kingi (Trujillo, 1966, pl. 49, fig. 5) from the Coniacian sediments of Clover Creek, east of Reading, Shasta County, California (USA). fig. 2. Holotype of Archaeoglobigerina bosquensis (Pessagno, 1967, pl. 60, figs 10–12 fig. 3) from the Santonian sediments of Lover's Leap, McLennan County, Texas (USA). fig. 3. Hypotype of F. kingi from the lower Turonian sediments (M. schneegansi Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 33-1, 50–52 cm. fig. 4. hypotype of F. kingi from the lower Turonian sediments (H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm. fig. 5. Hypotype of F. kingi from the lower Turonian sediments (H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm. fig. 6. Hypotype of F. kingi from the lower Turonian sediments (H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 34-2, 53–55 cm.

fig. 1 . Holotype of Fingeria kingi (Trujillo, 1966) originally figured a...

Published: 01 December 2010
cm. fig. 4 . hypotype of F. kingi from the lower Turonian sediments ( H. helvetica Biozone) of the equatorial Central Pacific, Shatsky Rise, DSDP Site 463, Sample 35-1, 17–19 cm. fig. 5 . Hypotype of F. kingi from the lower Turonian sediments ( H. helvetica Biozone) of the equatorial Central
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Paleogeographic reconstruction for 92 Ma (after Hay, 1999) showing selected Turonian occurrences of Helvetoglobotruncana helvetica.

Paleogeographic reconstruction for 92 Ma (after Hay, 1999 ) showing select...

Published: 01 January 2014
Figure 2 Paleogeographic reconstruction for 92 Ma (after Hay, 1999 ) showing selected Turonian occurrences of Helvetoglobotruncana helvetica .
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Specimens of Heterohelix americana(Ehrenberg), 1843 (1–6) and Globoheterohelix paraglobulosa n. gen., n. sp. (7–12). 1–3 Hypotype of H. americana from the uppermost Cenomanian–lowermost Turonian (Whiteinella archaeocretacea Biozone) of western Africa (Senegal), well Rd2, sample depth 1651–1660 m (USNM 473378). 4–6 Hypotype of H. americana from the uppermost Cenomanian–lowermost Turonian (Whiteinella archaeocretacea Biozone) of western Africa (Senegal), well Rd2, sample depth 1651–1660 m (USNM 473378). 7–8 Hypotype of G. paraglobulosa from the lower Turonian (Helvetoglobotruncana helvetica Biozone) of southeast Tanzania (Tanzanian Drilling Program Sample 22–33–3, 22–30 cm) with well preserved periapertural structures consisting of imperforate rims. 9–10 Holotype of G. paraglobulosa from the lower Turonian (Helvetoglobotruncana helvetica Biozone) sediments of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534401). 11–12 Paratype of G. paraglobulosa from the lower Turonian (Helvetoglobotruncana helvetica Biozone) sediments of the equatorial Pacific (Mid-Pacific Mountains), DSDP Site 463, Sample 35–1, 17–19 cm (USNM 534402).

Specimens of Heterohelix americana (Ehrenberg), 1843 (1–6) and Globohet...

Published: 01 October 2009
( Helvetoglobotruncana helvetica Biozone) of southeast Tanzania (Tanzanian Drilling Program Sample 22–33–3, 22–30 cm) with well preserved periapertural structures consisting of imperforate rims. 9–10 Holotype of G. paraglobulosa from the lower Turonian ( Helvetoglobotruncana helvetica Biozone) sediments