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![The planktonic foraminiferal species Thalmanninella caroni, Th. globotruncanoides, the intermediate forms between both typological species, and Planomalina buxtorfi in the SMA and HML sections. Scale bar = 0.1 mm]()
![(Scale bars 100 μm except where otherwise stated) 1Guembelitria cenomana, Sample 1050C-27R-1, 73–76 cm, scale bar 20 μm. 2a–bLaeviheterohelix sp., Sample 1050C-27R-1, 73–76 cm, scale bar 20 μm. 3a–cSchackoina leckiei, Sample 1050C-27R-1, 73–76 cm. 4a–cHedbergella wondersi, Sample 1050C-31R-6, 88–91 cm. 5a–bGlobigerinelloides pulchellus, Sample 1050C-27R-4, 134-136cm. 6a–bPlanomalina praebuxtorfi, Sample 1052E-42R-5, 146.5–148.5 cm. 7a–bPlanomalina buxtorfi, Sample 1052E-40R-1, 127–130 cm. 8Globigerinelloides bentonensis Sample 1052E-44R-6, 50–53 cm. 9a–cGlobigerinelloides bentonensis, holotype USNM 65381. 10a–cGlobigerinelloides pulchellus, holotype USNM 641522.]()
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![First thumbnail for: The Albian (Vraconnian)-Cenomanian boundary at the...]()
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![Figure 12. Photomicrographs of some important microfossils. Stratigraphic ranges are from Premoli Silva and Sliter (1994). Kirazbaşı Formation: (A) Planomalina cf. buxtorfi (Gandolfi), A-7, late Albian; (B) Ticinella roberti (Gandolfi), A-7, late Albian; (C) Dicarinella asymetrica (Sigal), A-6, Santonian; (D) Heterohelix punctulata (Cushman), A-6, Santonian–Maastrichtian; (E) Helvetoglobotruncana helvetica (Bolli), A-5, early Turonian; (F) Dicarinella canaliculata (Reuss), A-5, Cenomanian–Coniacian; (G) Marginotruncana renzi (Gandolfi), A-2, Turonian–Santonian; (H) Globotruncana cf. hilli Pesssagno, A-2, Turonian–Maastrichtian; (I) Hedbergella flandrini Porthault, A-2, late Turonian–Santonian; (J) Marginotruncana sigali (Reichel), A-3, Turonian–Santonian. Kapanboğazi Formation: (K) Heterohelix moremani (Cushman), V-3, Cenomanian–Campanian; (L) Globotruncanita cf. elevata (Brotzen), V-3, Santonian–Campanian; (M) Marginotruncana pseudolinneiana Pessagno, V-3, Santonian–Campanian. Samples include benthic foraminifers characteristic of the Maastrichtian: Siderolites cf. calcitrapoides Lamarck, Cideina cf. soezerii (Sirel), and Lepiorbitoides sp.]()
![Figure 2. Stable isotope (δ18O and δ13C) composition of multispecies planktonic foraminifera (PF) and coccolith-rich fraction at the Albian–Cenomanian transition of ODP Site 1050, plotted against sub-bottom depth (mbsf) (data partly from Huber et al. 2002). Plots shown on bottom are δ18O–δ13C relationships for four discrete intervals, phases I to IV (coccolith δ18O and δ13C values are relatively invariant in each phase). The planktonic foraminiferal zonation is from this study and the nannofossil (NF) zonation is from Watkins et al. (2005). The pronounced positive δ18O anomaly (shaded) is due to selective diagenesis at a varicolored lithology as supported by SEM and Sr/Ca evidence (see text). Note that the PF temperature scale may underestimate paleotemperatures by up to ∼5°C owing to diagenetic overprints (Fig. 4). Abbreviations: Pg., Praeglobotruncana; R., Rotalipora; Hd., Hedbergella; G., Globigerinelloides; Pc., Paracostellagerina; Pl., Planomalina; T., Ticinella; UC, unconformity; VPDB, Vienna Peedee belemnite. See color version of this figure in the online PDF format of this paper.]()
![1a–c. Hedbergella praelibyca Petrizzo and Huber. Topotype from the lower Cenomanian (Rotalipora globotruncanoides Zone) of ODP Site 1050C-26R-5. 83–86 cm at Blake Nose (western North Atlantic). 2a–c. Costellagerina pilula (Belford). Hypotype from the upper Santonian Merchantville Formation (Globotruncana arca Zone) of ODP Leg 174AX, 504-17-504.20 m at Bass River site (New Jersey Coastal Plain). 3a–c. Costellagerina pilula (Belford). Topotype from the upper Santonian Toolonga Calcilutite of Western Australia (sample Huber). 4a–c. Paracostellagerina libyca (Barr). Hypotype from the lower Cenomanian (Rotalipora globotruncanoides Zone) of ODP Site 1050C-26R-5. 83–86 cm at Blake Nose (western North Atlantic). 5a–c. Paracostellagerina libyca (Barr). Hypotype from the lower Cenomanian (Rotalipora globotruncanoides Zone) of ODP Site 1050E-26R-4, 83–86 cm at Blake Nose (western North Atlantic). 6a–c. Paracostellagerina libyca (Barr). Hypotype from the late Albian (Planomalina buxtorfi Zone) of ODP Site 1052E-41R-2, 104–106 cm from Blake Nose (western North Atlantic).]()
![Scanning electron micrographs to document the preservation of calcareous nannofossils and planktic Foraminifera. (a, b) Calcareous nannofossils; scale bar represents 2 μm. (a) Well-preserved specimen of Biscutum constans (distal view) enclosed with a clayey matrix; calcitic cements are nearly absent (black shale sample, 48.79 m). (b) Specimens of Nannoconus truitti and other nannofossils; again no significant amount of secondary calcite can be recognized. Nannofossils show a pristine preservation (black shale sample, 52.56 m). (c, d) Planktic Foraminifera; scale bar represents 50 μm. (c) Dorsal view of Planomalina buxtorfi (marlstone sample, 47.43 m). Primary tests are altered and recrystallized, but pores are still visible. (d) Dorsal view of Rotalipora appenninica (marlstone sample, 50.29 m). This specimen shows the same preservational characteristics as that shown in (c). (e) Coccolith-dominated marlstone sample (52.86 m); scale bar represents 1 μm. The marlstone consists mainly of coccolith calcite and clay minerals. Coccoliths are well preserved, but show sometimes slight indications of overgrowth and a low degree of secondary cementation. Bc, Biscutum constans; cm, clay minerals; dc, diagenetic carbonate; N, Nannoconus; nf, nannofossil fragments; Z, Zeugrhabdotus.]()
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1-20 OF 71 RESULTS FOR
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Journal Article
ON THE PHYLOGENY OF THE LATE ALBIAN GENUS PLANOMALINA Available to Purchase
Journal: Journal of Foraminiferal Research
Published: 01 July 2006
Journal of Foraminiferal Research (2006) 36 (3): 233–240.
...Maria Rose Petrizzo; Brian T. Huber Abstract The ancestor-descendant relationships of the late Albian Planomalina lineage have been reconstructed using morphologic observations obtained from the Scanning Electron Microscope and supported by morphometric analysis using X-ray images of the shell...
FIGURES
Journal Article
The taxonomic status of Praeglobotruncana, Planomalina, Globigerinella, and Biglobigerinella Available to Purchase
Journal: Micropaleontology
Publisher: Micropaleontology Press
Published: 01 July 1960
Micropaleontology (1960) 6 (3): 315–322.
Image
The planktonic foraminiferal species Thalmanninella caroni, Th. globotrunc... Available to Purchase
in The Albian (Vraconnian)-Cenomanian boundary at the western Tethyan margins (Central Tunisia and southeastern France)
> Bulletin de la Société Géologique de France
Published: 01 May 2008
Pl. II. – The planktonic foraminiferal species Thalmanninella caroni, Th. globotruncanoides , the intermediate forms between both typological species, and Planomalina buxtorfi in the SMA and HML sections. Scale bar = 0.1 mm 1: Thalmanninella caroni (I on ); sample SMA 81. 2: Th. caroni
Journal Article
Quantitative Biostratigraphic Analysis and Age Estimates of Middle Cretaceous Sequences in The Baltimore Canyon Trough, Offshore Mid-Atlantic U.S. Margin Available to Purchase
Journal: Journal of Foraminiferal Research
Published: 31 October 2022
Journal of Foraminiferal Research (2022) 52 (4): 229–247.
... on chronostratigraphically significant biostratigraphic markers that we identified: the late Cenomanian to Turonian DCx sequence ( Rotalipora cushmani and Thalmanninella greenhornensis ); the early Cenomanian LC1 sequence; the middle and late Albian LC2 sequence ( Braarudosphaera africana , Planomalina buxtorfi...
Image
(Scale bars 100 μm except where otherwise stated) 1 Guembelitria cenomana... Available to Purchase
in BIOSTRATIGRAPHY AND TAXONOMY OF LATE ALBIAN PLANKTONIC FORAMINIFERA FROM ODP LEG 171B (WESTERN NORTH ATLANTIC OCEAN)
> Journal of Foraminiferal Research
Published: 01 April 2006
, Sample 1050C-31R-6, 88–91 cm. 5a–b Globigerinelloides pulchellus , Sample 1050C-27R-4, 134-136cm. 6a–b Planomalina praebuxtorfi , Sample 1052E-42R-5, 146.5–148.5 cm. 7a–b Planomalina buxtorfi , Sample 1052E-40R-1, 127–130 cm. 8 Globigerinelloides bentonensis Sample 1052E-44R-6, 50–53 cm. 9a–c
Journal Article
Low-latitude sea-surface temperatures for the mid-Cretaceous and the evolution of planktic foraminifera Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 September 1998
Geology (1998) 26 (9): 823–826.
... reported here. Isotopic analysis of mid-Cretaceous planktic foraminifera shows that Planomalina , Ticinella , and Biticinella grew in surface waters and provide isotopic proxies for SST, whereas deeper growing species include Hedbergella , Rotalipora , and Praeglobotruncana . None of these taxa display...
Journal Article
Biozonation of the Uttatur Group, Trichinopoly, Cauvery Basin Available to Purchase
Publisher: Geological Society of India
Published: 01 August 1977
Jour. Geol. Soc. India (1977) 18 (8): 415–428.
... forminiferal sequences. These zones range in age from Albian to Early Turonian. The proposed zones are: Hedbergella planispira assemblage zone and Planomalina buxtorfi Range zone for Albian; Rotalipora evoluta Range Zone and Rotalipora reicheli Range zone for Cenomanian and Marginotruncana helvetica - M...
Journal Article
ERRATA Available to Purchase
Journal: Journal of Foraminiferal Research
Published: 01 January 2005
Journal of Foraminiferal Research (2005) 35 (1): 83.
... (Actually Marginotruncana angusticarinata, but is deleted from database because species not widely reported and name has not appeared in the literature for more than 30 years.). Planomalina caseyi (Deleted; a junior synonym of Globigerinelloides bentonensis ). Hedbergella delrioensis (Range...
Journal Article
BIOSTRATIGRAPHY AND TAXONOMY OF LATE ALBIAN PLANKTONIC FORAMINIFERA FROM ODP LEG 171B (WESTERN NORTH ATLANTIC OCEAN) Available to Purchase
Journal: Journal of Foraminiferal Research
Published: 01 April 2006
Journal of Foraminiferal Research (2006) 36 (2): 166–190.
... , Sample 1050C-31R-6, 88–91 cm. 5a–b Globigerinelloides pulchellus , Sample 1050C-27R-4, 134-136cm. 6a–b Planomalina praebuxtorfi , Sample 1052E-42R-5, 146.5–148.5 cm. 7a–b Planomalina buxtorfi , Sample 1052E-40R-1, 127–130 cm. 8 Globigerinelloides bentonensis Sample 1052E-44R-6, 50–53 cm. 9a–c...
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Journal Article
Foraminifers and Calcispheres from Cuesta del Cura and Lower Agua Nueva(?) Formations (Cretaceous), East-Central Mexico Available to Purchase
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 September 1980
AAPG Bulletin (1980) 64 (9): 1560.
... recognized, including Favusella washitensis, Ticinella roberti, Globigerinelloides breggiensis, Thalmanninella subticinensis, T. ticinensis, Planomalina buxtorfi, Rotalipora apenninica, Praeglobotruncana stephani, P. delrioensis, Globigerinelloides bentonensis, Rotalipora gandolfi, R. greenhornensis, R...
Journal Article
Foraminifera of Franciscan (California): GEOLOGICAL NOTES Available to Purchase
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 September 1949
AAPG Bulletin (1949) 33 (9): 1615–1617.
.... Eponides sp. Globigerina almadenensis Cushman and Todd G. sp. Hastigerinella sp. Globorotalia californica Cushman and Todd G. decorata Cushman and Todd G. almadenensis Cushman and Todd Planomalina? almadenensis Cushman and Todd The stratigraphic conclusions reached...
Journal Article
The Albian (Vraconnian)-Cenomanian boundary at the western Tethyan margins (Central Tunisia and southeastern France) Available to Purchase
Publisher: Société Géologique de France
Published: 01 May 2008
Bulletin de la Société Géologique de France (2008) 179 (3): 245–266.
...Pl. II. – The planktonic foraminiferal species Thalmanninella caroni, Th. globotruncanoides , the intermediate forms between both typological species, and Planomalina buxtorfi in the SMA and HML sections. Scale bar = 0.1 mm 1: Thalmanninella caroni (I on ); sample SMA 81. 2: Th. caroni...
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Journal Article
Evoluzione paleotettonica della Sicilia nord-occidentale Free
Journal: Italian Journal of Geosciences
Publisher: Societa Geologica Italiana
Published: 01 January 1973
Italian Journal of Geosciences (1973) 92 (4): 903–924.
... Miocene Mollusca Monaco-Sparagio Unit Monte Acci Monte Bosco Monte Luziano Neogene neritic Oligocene Orbitolina Orbitolinidae Paleogene paleogeography palinspastic section Panormide Platform pillow structure Planomalina Plantae platforms Protista radiolarite sandstone sedimentary...
Journal Article
PARACOSTELLAGERINA NOV. GEN., A MERIDIONALLY COSTELLATE PLANKTONIC FORAMINIFERAL GENUS OF THE MIDDLE CRETACEOUS (LATEST ALBIAN-EARLIEST CENOMANIAN) Available to Purchase
Journal: Journal of Foraminiferal Research
Published: 01 October 2006
Journal of Foraminiferal Research (2006) 36 (4): 368–373.
... the Planomalina praebuxtorfibuxtorfi Zone (latest Albian) throughout the lower part of the Rotalipora gandolfii Zone (earliest Cenomanian). Further documented occurrences of this species show a global distribution at tropical and subtropical latitudes (Fig. 3 ). F igure 3. Geographic distribution...
FIGURES
Journal Article
The evolution of the Lansarine–Baouala salt canopy in the North African Cretaceous passive margin in Tunisia Available to Purchase
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 07 March 2013
Geological Magazine (2013) 150 (5): 835–861.
... to black marls (of deep water depositional environment) in the core of the anticline, shows a normal stratigraphical polarity and is dated as late Aptian (Clansayesian) due to the presence of Lenticulina busnardoi and Spirillina neocomiana , Lagena sp., Pseudoglandulina and Planomalina...
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Image
Figure 12. Photomicrographs of some important microfossils. Stratigraphic r... Available to Purchase
in Cretaceous and Triassic subduction-accretion, high-pressure–low-temperature metamorphism, and continental growth in the Central Pontides, Turkey
> GSA Bulletin
Published: 01 September 2006
Figure 12. Photomicrographs of some important microfossils. Stratigraphic ranges are from Premoli Silva and Sliter (1994) . Kirazbaşı Formation: (A) Planomalina cf. buxtorfi (Gandolfi), A-7, late Albian; (B) Ticinella roberti (Gandolfi), A-7, late Albian; (C) Dicarinella asymetrica (Sigal
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Figure 2. Stable isotope (δ 18 O and δ 13 C) composition of multispecies pl... Available to Purchase
in Depth-habitat reorganization of planktonic foraminifera across the Albian/Cenomanian boundary
> Paleobiology
Published: 01 August 2010
. , Rotalipora ; Hd ., Hedbergella ; G. , Globigerinelloides ; Pc. , Paracostellagerina ; Pl. , Planomalina ; T. , Ticinella ; UC, unconformity; VPDB, Vienna Peedee belemnite. See color version of this figure in the online PDF format of this paper.
Image
1a–c. Hedbergella prael ibyca Petrizzo and Huber. Topotype from the lowe... Available to Purchase
in PARACOSTELLAGERINA NOV. GEN., A MERIDIONALLY COSTELLATE PLANKTONIC FORAMINIFERAL GENUS OF THE MIDDLE CRETACEOUS (LATEST ALBIAN-EARLIEST CENOMANIAN)
> Journal of Foraminiferal Research
Published: 01 October 2006
North Atlantic). 6a–c. Paracostellagerina libyca (Barr). Hypotype from the late Albian ( Planomalina buxtorfi Zone) of ODP Site 1052E-41R-2, 104–106 cm from Blake Nose (western North Atlantic).
Image
Scanning electron micrographs to document the preservation of calcareous na... Available to Purchase
in Reconstruction of short-term palaeoceanographic changes during the formation of the Late Albian ‘Niveau Breistroffer’ black shales (Oceanic Anoxic Event 1d, SE France)
> Journal of the Geological Society
Published: 01 July 2005
represents 50 μm. ( c ) Dorsal view of Planomalina buxtorfi (marlstone sample, 47.43 m). Primary tests are altered and recrystallized, but pores are still visible. ( d ) Dorsal view of Rotalipora appenninica (marlstone sample, 50.29 m). This specimen shows the same preservational characteristics
Journal Article
Thrombolitic and coral buildups in the Upper Albian of the Fahdene basin (North Tunisia): stratigraphy, sedimentology and genesis Available to Purchase
Publisher: Société Géologique de France
Published: 01 May 2012
Bulletin de la Société Géologique de France (2012) 183 (3): 217–231.
... of radiolarians and a poor planktonic microfauna ( fig. 2 ); the second set of buildups is enclosed within a shelf margin wedge tract (SMW). They overlie a highstand systems tract (HST) characterized in the topmost part by the extinction of radiolarians and the last appearance of Planomalina praebuxtorfi (W...
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