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Archaias

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Journal Article
Published: 01 July 2017
Journal of Foraminiferal Research (2017) 47 (3): 239–251.
... of Archaias angulatus , both in hospite and in cytoplasm extracted from the host shell, across a range of temperature conditions (4.4–33.9°C) using pulse amplitude modulated chlorophyll fluorometry and chlorophyll a measurements. Typical mean yields (F v /F m ) for symbionts in hospite were 0.6–0.7...
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Journal Article
Published: 01 April 2015
Journal of Foraminiferal Research (2015) 45 (2): 109–127.
...Paul O. Knorr; Lisa L. Robbins; Peter J. Harries; Pamela Hallock; Jonathan Wynn Abstract A common, but not universal, effect of ocean acidification on benthic foraminifera is a reduction in the growth rate. The miliolid Archaias angulatus is a high-Mg (>4 mole% MgCO 3 ), symbiont-bearing...
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Journal Article
Published: 01 April 1999
Journal of Foraminiferal Research (1999) 29 (2): 143–151.
...Kazuhiko Fujita; Pamela Hallock Abstract Habitat preferences of epiphytic foraminifers, particularly Archaias angulatus and Sorites orbiculus, were studied in a mixed macroalgalseagrass bed in Florida Bay near Long Key. Ten common plant species with different growth forms were sampled. On all ten...
Journal Article
Published: 01 January 1999
Journal of Foraminiferal Research (1999) 29 (1): 69–74.
... species with porcelaneous tests and those with calcareous hyaline tests. For this study, a video camera with a microscope attachment was used to record chamber formation in Archaias angulatus . Detailed study of the recording revealed previously undescribed transitional stages prior to calcification...
Journal Article
Published: 01 January 1998
Journal of Sedimentary Research (1998) 68 (1): 11–19.
...Ian G. Macintyre; R. Pamela Reid Abstract Mineralogic stabilization of porcelaneous foraminifera has been cited as an example of diagenesis in which chemical change occurs without any textural alteration. In contrast, our study of living specimens of a common species of this group, Archaias...
Journal Article
Published: 01 January 1992
Journal of Foraminiferal Research (1992) 22 (1): 1–12.
Journal Article
Published: 01 July 1988
Journal of Foraminiferal Research (1988) 18 (3): 187–202.
Journal Article
Published: 01 July 1986
Journal of Foraminiferal Research (1986) 16 (3): 201–206.
Journal Article
Published: 01 January 1986
Journal of Foraminiferal Research (1986) 16 (1): 1–8.
Journal Article
Published: 01 January 1975
Bulletin de la Société Géologique de France (1975) S7-XVII (6): 1157–1167.
...G. Bizon; J.-J. Bizon; E. Fourcade; D. Vachard GeoRef, Copyright 2013, American Geosciences Institute. 1975 Archaias Cretaceous Foraminifera Invertebrata Mesozoic microfossils Miliolina morphology new taxa paleontology Peneroplidae Perouvianella Peru Protista Senonian South...
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—Dominant foraminiferal indices of outer bay. A.  Discorbis mirus  in per c...
Published: 01 October 1964
Fig. 5. —Dominant foraminiferal indices of outer bay. A. Discorbis mirus in per cent of foraminiferal population. B. Discorbis mirus , in per cent of population and specimens per gram, plotted against per cent of grains larger than 0.062 mm. C. Archaias in per cent of foraminiferal
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Archaiasine and sortid foraminifera:  1  <span class="search-highlight">Archaias</span> , PE 6YH 60 1959.61 m;  2...
Published: 01 July 2019
Figure 6. Archaiasine and sortid foraminifera: 1 Archaias , PE 6YH 60 1959.61 m; 2 Archaias and peneroplid (centre) PE 6YH 100 1970.80 m; 3 Penarchaias sp. 1, B126-2 J; 4 Penarchaias sp. 2, MD-1 2192.30 m; 5 cf. Parasorites , MB-1 56v 2082.89 m; 6 Soritid sp. (?gen.nov), PE 6YH 60
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<span class="search-highlight">Archaias</span> operculiniformis  Henson. Scale bar 500 µm, (×25).  1  Axial secti...
Published: 01 July 2019
Figure 19. Archaias operculiniformis Henson. Scale bar 500 µm, (×25). 1 Axial section of a megalospheric specimen showing endoskeletal ridges on the basal layer and pillars (AFZ1361). 2, 7 Subaxial sections (AFZ1361, AFZ1365). 3 Slightly oblique with respect to the equatorial section
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A ,  B ) Experimental design.  C ) SEM image of individual  <span class="search-highlight">Archaias</span> angula...
Published: 01 May 2016
Fig. 4.— A , B ) Experimental design. C ) SEM image of individual Archaias angulatus formaminifer collected from San Salvador (modified from Darroch 2012 , fig. 5 ; scale bar 200 μm).
Journal Article
Published: 31 October 2022
Journal of Foraminiferal Research (2022) 52 (4): 212–228.
... gibbosa , Heterostegina depressa ; Miliolida: Peneroplis carinatus , Archaias angulatus , Amphisorus hemprichii , and Archaias compressus ) and symbiont-barren (Rotaliida: Buccella peruviana , Pseudononion atlanticum ; Miliolida: Quinqueloculina lamarckiana ). Stable isotopes measured on individual tests...
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Scanning electron microscope image of  <span class="search-highlight">Archaias</span> angulatus . Maximum diamete...
Published: 01 April 2015
Figure 1 Scanning electron microscope image of Archaias angulatus . Maximum diameter of the specimen is ~1.5 mm.
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Summary of  <span class="search-highlight">Archaias</span> angulatus  growth by cohort. The pH is the total scale...
Published: 01 April 2015
Table 3 Summary of Archaias angulatus growth by cohort. The pH is the total scale pH of the cohort (bag); Weeks is the number of weeks in culture; n is the number of specimens in the cohort; Diameter (Pre/Post) is the mean maximum diameter of the cohort’s specimens before and after culture; σ
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Mean weekly increase in diameter of  <span class="search-highlight">Archaias</span> angulatus  by cohorts, groupe...
Published: 01 April 2015
Figure 5 Mean weekly increase in diameter of Archaias angulatus by cohorts, grouped by pH level (n = 29). Weekly increase in diameter as a percentage of the original size and as an increase in μm are shown separately. Bars represent one standard error from the mean.
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Summary of  <span class="search-highlight">Archaias</span> angulatus  weekly growth by pH. All measurements are i...
Published: 01 April 2015
Table 4 Summary of Archaias angulatus weekly growth by pH. All measurements are in μm.
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<span class="search-highlight">Archaias</span> angulatus  pseudopore area (μm 2 ) after six weeks of treatment (n...
Published: 01 April 2015
Figure 6 Archaias angulatus pseudopore area (μm 2 ) after six weeks of treatment (n = 811).