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Oscillatorian

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Light micrographs of oscillatorian cyanobacteria morphotypes found at Paso Seco. A)Lyngbya sp., showing the firm mucilaginous sheath surrounding each filament. B)Microcoleus chthonoplastes with mucilaginous sheath enveloping several densely packed, interwoven filaments and conical end cells. C)Oscillatoria sp. with calyptra on end cell. D)Arthrospira sp. with regularly screw-like coiling of trichome. E)Pseudanabaena sp. showing slight constrictions at cross walls. F)Phormidium sp. with mucilaginous sheath and pointed end cells. G)Geitlerinema sp. showing slight constriction at cross walls, and narrowed, slightly bent end cell. H)Symploca sp. filaments enveloped by thin sheath. Magnification 400 ×; scale bar = 10 μm.
Published: 02 January 2018
Fig. 8.— Light micrographs of oscillatorian cyanobacteria morphotypes found at Paso Seco. A) Lyngbya sp., showing the firm mucilaginous sheath surrounding each filament. B) Microcoleus chthonoplastes with mucilaginous sheath enveloping several densely packed, interwoven filaments
Image
Published: 02 January 2018
Table 2.— Mean linear dimensions (diameter; μm) measured on morphotypes of Oscillatorian cyanobacteria found at Paso Seco, with references to trichome gliding motility for strains within each genus. Filament sheaths are not included in measurements.
Journal Article
Published: 02 January 2018
Journal of Sedimentary Research (2018) 88 (1): 24–37.
...Fig. 8.— Light micrographs of oscillatorian cyanobacteria morphotypes found at Paso Seco. A) Lyngbya sp., showing the firm mucilaginous sheath surrounding each filament. B) Microcoleus chthonoplastes with mucilaginous sheath enveloping several densely packed, interwoven filaments...
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First thumbnail for: Field Observations On the Evolution of Reticulate ...
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Journal Article
Journal: PALAIOS
Published: 05 December 2017
PALAIOS (2017) 32 (12): 725–738.
... plagioclase, NaAlSi 3 O 8 ) and anorthite (calcic plagioclase, CaAl 2 Si 2 O 8 ). Mixed cyanobacteria cultures composed predominantly of filamentous Oscillatorian and Phormidium species and one Nostoc species were isolated from microbial mat samples collected from Troll Springs, Svalbard, Norway...
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First thumbnail for: AN EXPERIMENTAL LOOK AT THE TAPHONOMY OF CYANOBACT...
Second thumbnail for: AN EXPERIMENTAL LOOK AT THE TAPHONOMY OF CYANOBACT...
Third thumbnail for: AN EXPERIMENTAL LOOK AT THE TAPHONOMY OF CYANOBACT...
Journal Article
Published: 01 October 2015
Journal of Sedimentary Research (2015) 85 (10): 1213–1227.
... Oscillatorian -type species and one Nostoc species were grown on S/N media of a low salinity comparable to fresh water ( Waterbury et al. 1986 ; Starke et al. 2013 ) ( Fig. 1 ). To closely simulate biomineralization in natural environments, approximately 1.3 grams of cyanobacterial mat was removed from...
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First thumbnail for: The Co-Evolution of Fe-Oxides, Ti-Oxides, and Othe...
Second thumbnail for: The Co-Evolution of Fe-Oxides, Ti-Oxides, and Othe...
Third thumbnail for: The Co-Evolution of Fe-Oxides, Ti-Oxides, and Othe...
Journal Article
Published: 01 January 2017
Bulletin de la Société Géologique de France (2017) 188 (1-2): 1–10.
... observations revealed that this mat is composed of oscillatorian cyanobacteria. The fanning-out and curved sets of rugae are aligned in the direction from the centre of the pond along the gentle slope towards one of the margins ( fig. 2B ). Occasional branching of individual rugae has also been observed ( fig...
Journal Article
Published: 01 March 2009
Journal of Paleontology (2009) 83 (2): 161–196.
... compared to polytrichomous filaments of the oscillatorian genera Microcoleus , Hydrocoleum , or Schizothrix ( Hermann, 1990 ). Polysphaeroides filiformis ( Fig. 15.8, 15.9, 15.16 ) is a distinctive fossil in which small spheroidal vesicles are arranged into loose multiseriate filaments surrounded...
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First thumbnail for: Neoproterozoic Microfossils from the Northeastern ...
Second thumbnail for: Neoproterozoic Microfossils from the Northeastern ...
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Journal Article
Published: 01 September 2005
Geological Magazine (2005) 142 (5): 465–498.
..., and probably oscillatorian cyanobacteria, but also fragments attributed to the problematic algal-type Vendotaenia , best known from the terminal Proterozoic of the East European Platform. These vendotaenids are most abundant in some of the samples taken from the upper Urusis Formation. These are underlain...
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First thumbnail for: The Fish River Subgroup in Namibia: stratigraphy, ...
Second thumbnail for: The Fish River Subgroup in Namibia: stratigraphy, ...
Third thumbnail for: The Fish River Subgroup in Namibia: stratigraphy, ...
Series: Geological Society, London, Special Publications
Published: 01 January 2012
DOI: 10.1144/SP366.5
EISBN: 9781862396142
... to Sinosabellidites because there is no analogue for this Tawuia shaped annulated organism among fossil and living algae. Morphologically Sinosabellidites may be similar to oscillatorian cyanobacteria, but it is larger by two orders of magnitude and without cross walls within its hollow cavity. Similar large...