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Impletosphaeridium clavus

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Specimens of  <b>Impletosphaeridium</b> <b>clavus</b>  from the Upper Cretaceous sediment...
in > Palynology
Published: 01 December 2014
Plate 1 Specimens of Impletosphaeridium clavus from the Upper Cretaceous sediments at Ekelöf Point and Sanctuary Cliffs, Antarctica. All images are at the same scale; scale bar: 10 μ m. England Finder coordinates are given for each specimen after the sample number. Most of the figures were
Image
Scanning electron microscope (SEM) images of  <b>Impletosphaeridium</b> <b>clavus</b>  re...
in > Palynology
Published: 01 December 2014
Plate 2 Scanning electron microscope (SEM) images of Impletosphaeridium clavus recorded from the Upper Cretaceous sediments at Sanctuary Cliffs, Snow Hill Island, and from the Cenozoic diamictites at Ekelöf Point, James Ross Island, Antarctica. Images are at different scales; scale bar: 10 μ m
Image
Reworked specimens of  <b>Impletosphaeridium</b> <b>clavus</b>  recorded from the Cenozoi...
in > Palynology
Published: 01 December 2014
Plate 3 Reworked specimens of Impletosphaeridium clavus recorded from the Cenozoic (Pliocene) diamictites at Ekelöf James Ross Island, and Cape Lamb diamictite (Pleistocene) from Vega Island, Antarctica, and from Recent (Holocene) sediments of the Beagle Channel, Tierra del Fuego, Argentina
Image
Transmitted light images of specimens of  <b>Impletosphaeridium</b> <b>clavus</b>  Wrenn ...
in > Palynology
Published: 01 June 2013
Plate 1 Transmitted light images of specimens of Impletosphaeridium clavus Wrenn & Hart 1988 emend. nov. from sample D5.930.1 (slide A). The images were taken using Differential Interference Contrast using an oil immersion objective. LF, MF and HF – low, mid and high focus respectively
Journal Article
Journal: Palynology
Published: 01 December 2014
Palynology (2014) 38 (2): 303–323.
...Plate 1 Specimens of Impletosphaeridium clavus from the Upper Cretaceous sediments at Ekelöf Point and Sanctuary Cliffs, Antarctica. All images are at the same scale; scale bar: 10 μ m. England Finder coordinates are given for each specimen after the sample number. Most of the figures were...
FIGURES | View All (6)
Journal Article
Journal: Geology
Published: 01 December 2013
Geology (2013) 41 (12): 1227–1230.
... at that time. There is no direct geological evidence for glaciation, but we present palynomorph records from Seymour Island, Antarctica, that may suggest Maastrichtian sea ice. The dinoflagellate cyst Impletosphaeridium clavus is dominant. We propose that its profusion may signify the accumulation of resting...
FIGURES
Journal Article
Journal: Palynology
Published: 01 June 2013
Palynology (2013) 37 (1): 151–169.
...Plate 1 Transmitted light images of specimens of Impletosphaeridium clavus Wrenn & Hart 1988 emend. nov. from sample D5.930.1 (slide A). The images were taken using Differential Interference Contrast using an oil immersion objective. LF, MF and HF – low, mid and high focus respectively...
FIGURES | View All (5)
Image
Scanning electron microscope images of specimens of  <b>Impletosphaeridium</b> cla...
in > Palynology
Published: 01 June 2013
Plate 2 Scanning electron microscope images of specimens of Impletosphaeridium clavus Wrenn & Hart 1988 emend. nov. from sample D5.930.1. These specimens illustrate further examples of process terminations recurved in an angular sense (close to 90°). The scale bars all represent 5 μ m
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Stratigraphic record of key Maastrichtian palynomorphs from Seymour Island,...
in > Geology
Published: 01 December 2013
( McArthur et al., 1998 ). A–D are palynomorph events; inset is photomicrograph, Impletosphaeridium clavus , slide D5.930.1A, England Finder W65–1. Asterisk represents δ 18 O temperature of 4–5 °C; δ 18 O data below 400 m do not include all fossil groups ( Tobin et al., 2012 ). Section correlation allows
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Dinoflagellate cysts recovered from the La Meseta Formation, Seymour Island...
Published: 12 July 2019
) Impletosphaeridium clavus (Wrenn & Hart, 1988 ) emend. Bowman et al . 2013, sample AM1-15 (BAFC-Pl 2511: P22/3). (d) Lejeunecysta sp., sample AM2-5 (BAFC-Pl 2514: C33/2). (e) Octodinium askiniae Wrenn & Hart, 1988 , sample AM1-15 (BAFC-Pl 2511: T24). (f) Operculodinium centrocarpum (Deflandre
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Late Cretaceous paleosol stable isotopes from the SK-1 core (northeastern C...
in > Geology
Published: 01 April 2015
Figure 2. Late Cretaceous paleosol stable isotopes from the SK-1 core (northeastern China) and comparison with global records. A: Backstripped eustatic sea-level estimates from Miller et al. (2005) and palynological records from Antarctica (peaks of Impletosphaeridium clavus suggest sea ice
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High-magnification images of process terminations observed on specimens of ...
in > Palynology
Published: 01 June 2013
Plate 3 High-magnification images of process terminations observed on specimens of Impletosphaeridium clavus Wrenn & Hart 1988 emend. nov. Figures 1–10 – transmitted light images comprising enlargements of specimens illustrated in Plate 1 (slide D5.930.1A). The scale bars all represent 5
Journal Article
Published: 12 July 2019
Geological Magazine (2020) 157 (3): 351–366.
...) Impletosphaeridium clavus (Wrenn & Hart, 1988 ) emend. Bowman et al . 2013, sample AM1-15 (BAFC-Pl 2511: P22/3). (d) Lejeunecysta sp., sample AM2-5 (BAFC-Pl 2514: C33/2). (e) Octodinium askiniae Wrenn & Hart, 1988 , sample AM1-15 (BAFC-Pl 2511: T24). (f) Operculodinium centrocarpum (Deflandre...
FIGURES | View All (5)
Journal Article
Journal: Geology
Published: 01 April 2015
Geology (2015) 43 (4): 287–290.
...Figure 2. Late Cretaceous paleosol stable isotopes from the SK-1 core (northeastern China) and comparison with global records. A: Backstripped eustatic sea-level estimates from Miller et al. (2005) and palynological records from Antarctica (peaks of Impletosphaeridium clavus suggest sea ice...
FIGURES
Journal Article
Published: 27 July 2016
Geological Magazine (2017) 154 (5): 1022–1036.