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Cruciplacolithus primus

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Journal Article
Published: 01 September 1998
Bulletin de la Société Géologique de France (1998) 169 (5): 709-723.
.... parvulum. Cruciplacolithus primus and Futyania petalosa and planktonic foraminiferal zones. Latest Maastrichtian assemblages are abundant and diverse, coccolithophores did not seem to be in decline in the latest Maastrichtian, though periods of stress are indicated by peaks in relative abundance of Micula...
Journal Article
Published: 01 January 2003
Micropaleontology (2003) 49 (2): 189-195.
...Hartmut Mai; Robert P. Speijer; Peter Schulte Abstract The calcareous nannofossil species Neobiscutum romeinii , N. parvulum, and Cruciplacolithus primus , are considered in modern zonation schemes as index species for the lowermost Paleocene. Our studies, however, reveal that they are consistently...
FIGURES
Journal Article
Published: 01 July 2000
Micropaleontology (2000) 46 (3): 277-283.
...Hartmut Mai Abstract The same specimens of Neobiscutum romeinii, Neobiscutum parvulum and Cruciplacolithus primus, with an average size of 2.0 mu m and deriving from the "type locality" of the Maastrichtian stage at ENCI quarry near Maastricht, The Netherlands, were documented both under the light...
Journal Article
Published: 01 January 2007
Micropaleontology (2007) 53 (1-2): 127-144.
... 2003 ). They mentioned also that the first occurrence of Biantholithus sparsus was in Sample M39 (about 0.5m above the boundary). The next taxon to appear in the early Paleocene is Cruciplacolithus primus (small), followed by C. tenuis, Ericsonia cava , and C. edwardsii . This plus the presence...
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Image
Brazos River , Texas, USA, Core 2, sample 1
 1  Neobiscutum romeinii , prox...
Published: 01 January 2003
PLATE 1 Brazos River , Texas, USA, Core 2, sample 1
 1 Neobiscutum romeinii , proximal 2.5μm
 2 Neobiscutum parvulum , distal 2.3μm
 3 Cruciplacolithus primus , proximal 3.3μm
 Antioch Church , Alabama, USA, Core, sample 40
 4 Neobiscutum romeinii , proximal 2.4μm
 5 Neobiscutum parvulum
Image
Katharina in typical discursive mode, Chateau de Blagnac France September 1...
Published: 01 May 2009
Fig. 1. Katharina in typical discursive mode, Chateau de Blagnac France September 1999, flanked by two of the many species she described: Micula prinsii and Cruciplacolithus primus , markers for the latest Maastrichtian and earliest Danian, respectively.
Image
Figure 2. Abundances of principal survivor and incoming Cenozoic nannofossi...
in > Geology
Published: 01 August 2005
, Zeugrhabdotus sigmoides , Neobiscutum parvulum , Cruciplacolithus primus , Coccolithus pelagicus .
Image
Figure 1. Percentages of Cretaceous, survivor, and Cenozoic calcareous nann...
in > Geology
Published: 01 August 2005
) , and numbered bioevents are as follows: (1) presence of Micula prinsii ; (2) calcisphere abundance increases; (3) first occurrence of (FO) Neobiscutum ; (4) FO Cruciplacolithus primus ; (5) FO Cruciplacolithus intermedius ; (6) abundant Futyania petalosa .
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Correlation of environmental proxies to Deccan volcanism and the La2010b or...
in > Geology
Published: 12 December 2017
. prinsii — Micula prinsii ; Cr. primusCruciplacolithus primus . C: Timing of Deccan volcanism, with formation (Fm) volumes calculated by the equal area method (gray), variable area method (red), and red bole distribution illustrated as a black line, using Ar-Ar ages in Renne et al. (2015) . U-Pb age
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The results of the PDM for six nannofossil taxa that originated in the earl...
Published: 08 July 2014
Figure 8. The results of the PDM for six nannofossil taxa that originated in the early Paleogene: Coccolithus , Cruciplacolithus intermedius , Cr. primus , Futyania , Neobiscutum , and Prinsius . The histograms of all possible original first occurrences are shown for Shatsky Rise (light
Series: SEPM Special Publication
Published: 01 January 2011
DOI: 10.2110/sepmsp.100.157
EISBN: 9781565763098
... section, only three Tertiary species are identified (Table 2 ). Among them Cruciplacolithus primus (small,, 3.5 ìm; medium, > 3.5 ìm,, 5 ìm, and large, > 5 ìm,, 7 ìm; Bernaola and Monechi, 2007 ) increases abruptly in Subzone NP1b and constitutes about 50% of the total nannofossil assemblage...
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Journal Article
Journal: Geology
Published: 01 August 2005
Geology (2005) 33 (8): 653-656.
... , Zeugrhabdotus sigmoides , Neobiscutum parvulum , Cruciplacolithus primus , Coccolithus pelagicus . ...
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Journal Article
Journal: Paleobiology
Published: 05 October 2015
Paleobiology (2015) 41 (4): 661-679.
... in the global patterns of recovery of nannoplankton. We conclude: The few survivors of the event were rare Cretaceous taxa found mainly in shelf settings (Bown 2005 ). Two of these survivors, Neobiscutum and Cruciplacolithus primus, likely evolved at the end of the Maastrichtian...
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Journal Article
Published: 01 May 2009
Journal of Micropalaeontology (2009) 28 (1): 91-93.
...Fig. 1. Katharina in typical discursive mode, Chateau de Blagnac France September 1999, flanked by two of the many species she described: Micula prinsii and Cruciplacolithus primus , markers for the latest Maastrichtian and earliest Danian, respectively. ...
FIGURES
Image
(The scale bar for all photographs equal approximately to 2 μm.  XPL=cross-...
Published: 01 January 2006
PLATE 1 (The scale bar for all photographs equal approximately to 2 μm. XPL=cross-polarized light; TL= transmitted light. All photographs were taken from Gebel Serai section) 1 Cruciplacolithus tenuis , sample 7, Zone Np7/8, XPL. 2–5 Sullivania consueta, Zone NP10a; 2–3, sample 76; 4–5
Series: GCSSEPM
Published: 01 December 2007
DOI: 10.5724/gcs.07.27.0211
EISBN: 978-0-9836096-3-6
..., Ericsonia subpertusa , and Prinsius bisulcus for NP9 , Cruciplacolithus primus and Heliolithus riedelii for NP8 , Neochiastozygus perfectus and Prinsius martinii for NP6 , Cruciplacolithus inseadus, Ellipsolithus bollii, Fasciculithus bitectus, Hornibrookina teuriensis , and Neocrepidolithus...
Series: Geological Society, London, Special Reports
Published: 01 January 2016
DOI: 10.1144/SR27.9
EISBN: 9781862397071
... and needs biostratigraphic confirmation. Units 1— 5 contain a Late Maastrichtian microfauna, macrofauna and nannoflora. Unit 6 contains similar assemblages, including in situ ammonites at the top, but also Danian nannofossils (Cruciplacolithus primus and Neobiscutum spp.). Reworked nannofossils...
Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2416(12)
...— Lithraphidites quadratus Bramlette and Martini. In NTp1B: 1— Neobiscutum parvulum (Romein) Varol; 2— Neobiscutum romeinii (Perch-Nielsen) Varol; 3— Cruciplacolithus primus Perch-Nielsen; 4— Neocrepidolithus neocrassus (Perch-Nielsen) Romein; 5— Neocrepidolithus sp. cf. N. dirimosus (Perch-Nielsen) Perch...
Journal Article
Journal: Geology
Published: 12 December 2017
Geology (2017) 46 (2): 147-150.
.... prinsii — Micula prinsii ; Cr. primusCruciplacolithus primus . C: Timing of Deccan volcanism, with formation (Fm) volumes calculated by the equal area method (gray), variable area method (red), and red bole distribution illustrated as a black line, using Ar-Ar ages in Renne et al. (2015) . U-Pb age...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2004
DOI: 10.1144/GSL.SP.2004.229.01.08
EISBN: 9781862394773
... (Bramlette & Sullivan 1961) Gartner 1971 Cruciplacolithus inseadus Perch-Nielsen 1969 Cruciplacolithus intermedius van Heck & Prins 1987 Cruciplacolithus primus Perch-Nielsen 1977 Cruciplacolithus subrotundus Perch-Nielsen 1969 Cruciplacolithus tenuis (Stradner 1961) Hay & Mohler...
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