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Florisphaera profunda

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Estimates of the weight of a specimen of  <span class="search-highlight">Florisphaera</span> <span class="search-highlight">profunda</span>  (Y1 axis a...
Published: 01 October 2005
TEXT-FIGURE 3 Estimates of the weight of a specimen of Florisphaera profunda (Y1 axis and squares) and a ceratolith of Ceratolithus cristatus (Y2 axis and diamonds) based on 90 orientations of the coccoliths between 0° and 90° around the polarizing axis. The lines represent the 9 th order
Journal Article
Published: 01 July 2013
Journal of Micropalaeontology (2013) 32 (2): 123–133.
... and, as a minor component, species of the genus Syracosphaera , were mainly restricted to surface waters (≤50 m), all adapted to lower nutrient levels. The assemblage in the deep photic zone (50–150 m water depth) was composed mainly of abundant Florisphaera profunda, Gladiolithus flabellatus and Algirosphaera...
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Journal Article
Published: 23 December 2015
Journal of Micropalaeontology (2016) 35 (1): 103–116.
... recorded, with Emiliania huxleyi, Florisphaera profunda and Gephyrocapsa spp. dominating the assemblage. Two major conditions were identified, leading to three different intervals with characteristic species composition and associated changing environmental factors: a ‘normal’ condition characterized...
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The “corona” in  Solisphaera blagnacensis,  S.  emidasia,  and  Florisphaer...
Published: 01 December 2006
The “corona” in Solisphaera blagnacensis, S. emidasia, and Florisphaera profunda a Solisphaera blagnacensis : Domal side of coccosphere with some peltiform cedriliths collapsed into a corona, and some upright in original position. b Solisphaera emidasia : Domal side of coccosphere
Journal Article
Published: 01 February 2019
Italian Journal of Geosciences (2019) 138 (1): 3–16.
... and 850 kiloyears ago. Our investigation shows abrupt variations in water column dynamics across glacial/interglacial cycles or, even better, linked with different AMOC modes. Dominant placoliths indicate a shallow nutricline that alternate with dominant Florisphaera profunda , pointing to a deep...
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Journal Article
Published: 01 December 2004
Micropaleontology (2004) 50 (Suppl_1): 35–43.
... and Florisphaera profunda, measurements have been made on Calcidiscus leptoporus, Gephyrocapsa oceanica, Helicosphaera carteri and Syracosphaera pulchra. This study strongly reinforces the previous conclusion that size calibrations are essential for reliable results, i.e. that the superficially attractive...
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Journal Article
Published: 01 December 2004
Micropaleontology (2004) 50 (Suppl_1): 127–144.
...). Secondary species in coccolith fluxes were Florisphaera profunda (average 9%) , Rhabdosphaera clavigera (average 6%) , Syracosphaera spp. (average 5%). The calculated total coccolithophore and calcareous dinocyst carbonate flux is relatively low (between 0–26% of the total carbonate flux) attaining higher...
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Overview of the dominant coccolithophore species in the present M67/2 plank...
Published: 01 July 2013
(type A), GeoB 10601, 75 m; 5 , Coronosphaera maxima , GeoB 10604, 75 m; 6 , Umbilicosphaera sibogae , GeoB 10601, 50 m; 7 , Florisphaera profunda (type rhinoceros ), GeoB 10605, 75 m; 8 , Gladiolithus flabellatus , GeoB 10604, 120 m; 9 , Coccolithus braarudii and Algirosphaera robusta
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Mean composition of the coccolithophore assemblages and average coccolith f...
Published: 23 December 2015
. 2002 ). E. hux, Emiliania huxleyi ; C. lepto, Calcidiscus leptoporus ; G. oce, Gephyrocapsa oceanica ; C. pela, Coccolithus pelagicus ; F. prof., Florisphaera profunda ; H. car, Helicosphaera carteri . The species are always in the same order (clockwise) arranged (corresponding to the key first
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Figure 3. Correlation of past 1.2 m.y. sequences showing paleoeanographic a...
Published: 01 March 2003
Pulleniatina obliqueloculata at ODP Site 1143. C: Abundance (in percent) of nannoplankton Florisphaera profunda at ODP Site 1143. D: Abundance (in percent) of composite coarse fraction (>63 μm) of equatorial Indian Ocean ( Bassinot et al., 1994b ). E: Normalized magnetic susceptibility of subtropical
Journal Article
Published: 01 November 2006
Journal of Micropalaeontology (2006) 25 (2): 141–151.
.... with no clear dominance of a single species. There was a well-defined thermocline in the area at c . 100m and below this a deep-photic nannoplankton community was developed dominated by Florisphaera profunda , but also with high abundances of Algirosphaera robusta, Gladiolithus flabellatus and Oolithotus...
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Journal Article
Published: 01 December 2006
Micropaleontology (2006) 52 (5): 411–432.
...The “corona” in Solisphaera blagnacensis, S. emidasia, and Florisphaera profunda a Solisphaera blagnacensis : Domal side of coccosphere with some peltiform cedriliths collapsed into a corona, and some upright in original position. b Solisphaera emidasia : Domal side of coccosphere...
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Journal Article
Published: 01 October 2006
Journal of Foraminiferal Research (2006) 36 (4): 394–395.
... Quaternary paleoceanographic record from the middle Ryukyu Trench slope, northwest Pacific . Marine Micropaleontology 18 : 115 – 128 . 1993 . Ahagon , N. , Tanaka , Y. and Ujiie , H. Florisphaera profunda , a possible nannoplankton indicator of late Quaternary chenges in sea-water...
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Journal Article
Published: 01 October 2014
Italian Journal of Geosciences (2014) 133 (3): 474–480.
... specimens, that may have affected the accuracy of the determinations of the biohorizons. Florisphaera profunda shows wide abundance fluctuations between about 3% and 60%. Positive peaks are usually associated to odd (interglacial) Marine Isotopic Stages (MIS) or to sapropel layers, for instance...
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Journal Article
Journal: Geology
Published: 01 March 2003
Geology (2003) 31 (3): 239–242.
... Pulleniatina obliqueloculata at ODP Site 1143. C: Abundance (in percent) of nannoplankton Florisphaera profunda at ODP Site 1143. D: Abundance (in percent) of composite coarse fraction (>63 μm) of equatorial Indian Ocean ( Bassinot et al., 1994b ). E: Normalized magnetic susceptibility of subtropical...
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Journal Article
Published: 01 August 2011
European Journal of Mineralogy (2011) 23 (4): 519–528.
... analyses of minute crystals by using stereo-photo-grammetric scanning electron microscopy and electron backscattered diffraction. J. Microsc. (Oxford) , 228 , 358 –365. Kameo, K. & Furukawa, N. ( 2007 ): Analysis of crystallographic directions in Florisphaera profunda , Braarudosphaera...
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Journal Article
Published: 01 December 2010
Journal of Micropalaeontology (2010) 29 (2): 135–147.
... community. Florisphaera profunda Okada & Honjo occurred only sporadically and other typical deep photic species, such as Oolithotus spp. and Gladiolithus flabellatus Halldal & Markali were missing. So even at greater water depths E. huxleyi dominated the impoverished communities. In addition...
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Journal Article
Published: 01 July 2012
Journal of Micropalaeontology (2012) 31 (2): 169–178.
... – this study Florisphaera profunda Length 2.6 0.03 0.3–6 1.82 1.3 1 Helicosphaera carteri Length 10.5 0.06 83–353 190.7 135.0 Average between 1 and 2 H. spp. Length 8.8 0.06 40–131 96.8 Like H. carteri Pseudoemiliana lacunosa Length 4 0.04 1.8–13 4.8...
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Journal Article
Published: 01 October 2011
Italian Journal of Geosciences (2011) 130 (3): 343–351.
... for paleoenvironmental considerations, is the occurrence and the relative abundance variations of, among others, Florisphaera profunda , Syracosphaera pulchra , Helicosphaera spp. and Coccolithus pelagicus . Especially valuable for biostratigraphic considerations, although their abundance is consistently very low...
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Journal Article
Published: 01 October 2005
Micropaleontology (2005) 51 (4): 289–297.
...TEXT-FIGURE 3 Estimates of the weight of a specimen of Florisphaera profunda (Y1 axis and squares) and a ceratolith of Ceratolithus cristatus (Y2 axis and diamonds) based on 90 orientations of the coccoliths between 0° and 90° around the polarizing axis. The lines represent the 9 th order...
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