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cyanobacteria

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Journal Article
Published: 01 May 2020
Jour. Geol. Soc. India (2020) 95 (5): 447–454.
... assemblage includes Leiosphaeridia spp., Kildinosphaera verrucata, Trachyhystrichosphaera sp., the filamentous cyanophyte Taeniatum sp., the clusters of simple, spheroidal forms Myxococcoides sp., and the colonial cyanobacteria Synsphaeridium sp. This palynomorph assemblage suggests a Neoproterozoic age...
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Journal Article
Journal: PALAIOS
Published: 01 July 2017
PALAIOS (2017) 32 (7): 462–489.
...LIJING LIU; YASHENG WU; HONGXIA JIANG; NAIQIN WU; LIANQI JIA Abstract: The stratigraphic and facies distribution of 20 calcimicrobial genera (including calcified cyanobacteria and associated problematic calcified microfossils) are reported for the entire Ordovician succession in the Tarim Basin...
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Journal Article
Journal: Interpretation
Published: 16 March 2017
Interpretation (2017) 5 (2): SF225–SF242.
... in the middle of the Chang 7 may indicate the presence of freshwater cyanobacteria blooms that corresponds to a period of maximum lake expansion. The OM deposited in deeper parts of the lake is dominated by oil-prone type I or type II kerogen or a mixture of both. The OM deposited in shallower settings...
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Journal Article
Published: 06 March 2017
Journal of Paleontology (2017) 91 (3): 369–392.
...Min Shi; Qing-Lai Feng; Maliha Zareen Khan; Stanley Awramik; Shi-Xing Zhu Abstract Cherts and silicified dolostones of the ca. 1600 Ma Dahongyu Formation (uppermost Changcheng Group) from North China contain well-preserved microfossils. Cyanobacteria filaments and coccoids dominate the studied...
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Journal Article
Journal: Geology
Published: 01 December 2016
Geology (2016) 44 (12): 1007–1010.
... (fungi, cyanobacteria) are more representative of early soil-forming communities. Liverwort and lichen soils are thin, and their depth and complexity are constrained by the size and growth form of the dominant plants or lichens. They are aggregated and stabilized by cyanobacteria, mycorrhizal...
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Journal Article
Journal: Geology
Published: 01 August 2016
Geology (2016) 44 (8): 615–618.
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Journal Article
Journal: Geology
Published: 01 July 2016
Geology (2016) 44 (7): 579–582.
... throughout geologic history, the exceptional preservation of microbes in Ediacaran sediments suggests the potential for a unique taphonomic window. Here, we identify conditions conducive to the fossilization of filamentous cyanobacteria growing in the presence of siliciclastic sand and demonstrate...
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Journal Article
Published: 01 June 2016
Journal of Sedimentary Research (2016) 86 (6): 629–636.
... descriptions and classifications for tropical tidal-flat environments have focused predominantly on morphological observations. This is exemplified by flat and biscuit-shaped mats, where the mat morphotypes are postulated to reflect different Cyanobacteria communities as the main mat-building taxa. To compare...
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Journal Article
Journal: PALAIOS
Published: 01 November 2015
PALAIOS (2015) 30 (11): 792–801.
... short time periods, this investigation analyzes the processes which occurred within a microbial ecosystem as a whole over an extended time period. Microbial mats are complex benthic communities organized as millimetric multi-layered microecosystems frequently dominated by cyanobacteria...
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Journal Article
Published: 01 October 2015
Journal of Sedimentary Research (2015) 85 (10): 1213–1227.
...Dina M. Bower; Daniel R. Hummer; Andrew Steele; Atsushi Kyono Abstract: Changes in composition during the transition from sediment to rock are usually attributed to long, complicated histories and atmospheric influences, while the contribution of benthic mat-building cyanobacteria is not typically...
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Journal Article
Journal: Geology
Published: 01 October 2015
Geology (2015) 43 (10): 855–858.
... dense mazes of filamentous fossils, which were interpreted as algae or cyanobacteria, thus pointing to a shallow-marine subtidal or intertidal environment. The data presented here reveal that these filaments represent remains of colorless, vacuolated sulfide-oxidizing bacteria. This interpretation...
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Journal Article
Journal: Geology
Published: 01 October 2015
Geology (2015) 43 (10): 887–890.
... occurred locally as much as 2.8 b.y. ago, creating O 2 oases, or initiated just prior to the GOE. The biogeochemical dynamics of possible O 2 oases have been poorly constrained due to the absence of modern analogs. However, cyanobacteria in microbial mats in a perennially anoxic region of Lake Fryxell...
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Journal Article
Published: 05 August 2015
Geological Magazine (2015) 152 (6): 1145–1148.
... this strata interval, other characteristic Ediacaran microorganisms co-occur such as cyanobacteria, vendotaenids, microalgae, Ceratophyton , Valkyria and macroscopic annelidan Sabellidites . The recent contributions of organic sclerites in revealing the scope of the Cambrian explosion are therefore also...
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Journal Article