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![(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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![- Amelia outcrops. (A) Field view of the Calcare Massiccio Fm onlapped by the Marne a Fucoidi Fm. The steep unconformity surface is mineralised by Fe-Mn oxides (small yellow stars) and is patchily covered by planktonic foraminifer-rich pelagites in the form of epi-escarpment deposits. The Calcare Massiccio is also cut by neptunian dykes. Hammer for scale. (B) Microphotograph of the stratigraphic relationships between the oolitic (oo) Calcare Massiccio and the bioclastic wackestone of the Marne a Fucoidi Fm. Fe-Mn crust (ox) covers the Calcare Massiccio and envelopes planktonic foraminifers (pfor). Sample AC1032. Scale bar: 2 mm. (C) Pseudothalmanninella cf. ticinensis. Sample AC762. Scale bar: 0,2 mm. (D) Hedbergella cf. wondersi. Sample AC762. Scale bar: 0,2 mm. (E) Thin section of the Marne a Fucoidi-made neptunian dyke affecting the Calcare Massiccio. The walls of the fissure are covered by coarse bladed crystals of calcite. Abbreviations: ga) gastropod; oo) ooid; pfor) planktonic foraminifers. Sample AC1032a. Scale bar: 2 mm. F) Differential compaction-related centrifugal attitude of the Marne a Fucoidi beds onlapping the Calcare Massiccio. Fe-Mn mineralisation of the Calcare Massiccio is evidenced by yellow stars. Hammer for scale. (G) Graphic sketches, not to scale, showing the relationships between the Calcare Massiccio and the Marne a Fucoidi formations. Stereograms legend: full lines) present-day attitudes; dashed lines) rotated beds (restoration to the horizontal of the Calcare Massiccio); blue lines) Calcare Massiccio bed attitudes; black lines) attitudes of the Cretaceous palaeoescarpment; green lines) Marne a Fucoidi bed attitudes; red lines) neptunian dykes orientation.]()
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1-5 OF 5 RESULTS FOR
Hedbergella wondersi
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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.
... ontogeny. Both techniques are key to resolving questions on phylogeny and taxonomy, as they allowed us to propose that the trochospiral species Hedbergella wondersi is the ancestor of the genus Planomalina , and to document the Hedbergella wondersi - Globigerinelloides pulchellus - Planomalina praebuxtorfi...
FIGURES
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
PLATE 1 (Scale bars 100 μm except where otherwise stated) 1 Guembelitria cenomana , Sample 1050C-27R-1, 73–76 cm, scale bar 20 μm. 2a–b Laeviheterohelix sp., Sample 1050C-27R-1, 73–76 cm, scale bar 20 μm. 3a–c Schackoina leckiei , Sample 1050C-27R-1, 73–76 cm. 4a–c Hedbergella wondersi
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.
...PLATE 1 (Scale bars 100 μm except where otherwise stated) 1 Guembelitria cenomana , Sample 1050C-27R-1, 73–76 cm, scale bar 20 μm. 2a–b Laeviheterohelix sp., Sample 1050C-27R-1, 73–76 cm, scale bar 20 μm. 3a–c Schackoina leckiei , Sample 1050C-27R-1, 73–76 cm. 4a–c Hedbergella wondersi...
FIGURES
Image
- Amelia outcrops. (A) Field view of the Calcare Massiccio Fm onlapped by t... Available to Purchase
in Unconformities, neptunian dykes and mass-transport deposits as an evidence for Early Cretaceous syn-sedimentary tectonics: new insights from the Central Apennines
> Italian Journal of Geosciences
Published: 01 October 2019
(pfor). Sample AC1032. Scale bar: 2 mm. (C) Pseudothalmanninella cf. ticinensis. Sample AC762. Scale bar: 0,2 mm. (D) Hedbergella cf. wondersi. Sample AC762. Scale bar: 0,2 mm. (E) Thin section of the Marne a Fucoidi-made neptunian dyke affecting the Calcare Massiccio. The walls of the fissure
Journal Article
Unconformities, neptunian dykes and mass-transport deposits as an evidence for Early Cretaceous syn-sedimentary tectonics: new insights from the Central Apennines Available to Purchase
Journal: Italian Journal of Geosciences
Publisher: Societa Geologica Italiana
Published: 01 October 2019
Italian Journal of Geosciences (2019) 138 (3): 333–354.
... (pfor). Sample AC1032. Scale bar: 2 mm. (C) Pseudothalmanninella cf. ticinensis. Sample AC762. Scale bar: 0,2 mm. (D) Hedbergella cf. wondersi. Sample AC762. Scale bar: 0,2 mm. (E) Thin section of the Marne a Fucoidi-made neptunian dyke affecting the Calcare Massiccio. The walls of the fissure...
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