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Cycliocyrillium

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Figure 6 —The genus <span class="search-highlight">Cycliocyrillium</span> n. gen. and modern testate amoeban a...

Figure 6 —The genus Cycliocyrillium n. gen. and modern testate amoeban a...

Published: 01 May 2003
Figure 6 —The genus Cycliocyrillium n. gen. and modern testate amoeban analogs. 1–9, Cycliocyrillium simplex n. sp.; 1, HUPC# 64422 (AK-53-13A-4); 2, HUPC# 64418 (AK10-53-13A-2); 3, HUPC# 64451 (AK10-53-13A-7); 4, HUPC# 64419 (AK10-53-13A-2); 5, HUPC# 64452 (AK10-53-13A-7); 6
Journal Article

Insights into vase-shaped microfossil diversity and Neoproterozoic biostratigraphy in light of recent Brazilian discoveries

L. Morais, D.J.G. Lahr, I.D. Rudnitzki, B.T. Freitas, G.R. Romero, S.M. Porter, A.H. Knoll, T.R. Fairchild
Published: 01 July 2019
Journal of Paleontology (2019) 93 (4): 612–627.
DOI: https://doi.org/10.1017/jpa.2019.6
... with the Kwagunt Formation— L. lageniformis, P. urucumense, Cycliocyrillium simplex Porter, Meisterfeld, and Knoll, 2003, C. torquata Porter, Meisterfeld, and Knoll, 2003, B. dacruchares Porter, Meisterfeld, and Knoll, 2003, and T. horodyskii (Bloeser, 1985)—and all but the last of these in common...
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Journal Article

Carbonaceous and siliceous Neoproterozoic vase-shaped microfossils (Urucum Formation, Brazil) and the question of early protistan biomineralization

Luana Morais, Thomas Rich Fairchild, Daniel J.G. Lahr, Isaac D. Rudnitzki, J. William Schopf, Amanda K. Garcia, Anatoliy B. Kudryavtsev, Guilherme R. Romero
Published: 01 May 2017
Journal of Paleontology (2017) 91 (3): 393–406.
DOI: https://doi.org/10.1017/jpa.2017.16
.... This interpretation, coupled with test morphology, suggests affinity to arcellinid testate amoebae. Five VSM taxa are recognized in the deposit: Cycliocyrillium simplex Porter, Meisterfeld, and Knoll, 2003, and C . torquata Porter, Meisterfeld, and Knoll, 2003, originally described in the Chuar Group (USA), and three...
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Journal Article

VASE-SHAPED MICROFOSSILS FROM THE NEOPROTEROZOIC CHUAR GROUP, GRAND CANYON: A CLASSIFICATION GUIDED BY MODERN TESTATE AMOEBAE

SUSANNAH M. PORTER, RALF MEISTERFELD, ANDREW H. KNOLL
Published: 01 May 2003
Journal of Paleontology (2003) 77 (3): 409–429.
DOI: https://doi.org/10.1666/0022-3360(2003)077<0409:VMFTNC>2.0.CO;2
...Figure 6 —The genus Cycliocyrillium n. gen. and modern testate amoeban analogs. 1–9, Cycliocyrillium simplex n. sp.; 1, HUPC# 64422 (AK-53-13A-4); 2, HUPC# 64418 (AK10-53-13A-2); 3, HUPC# 64451 (AK10-53-13A-7); 4, HUPC# 64419 (AK10-53-13A-2); 5, HUPC# 64452 (AK10-53-13A-7); 6...
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Photomicrographs of Vase-Shaped Microfossils (VSMs) from sample KF17-56 of ...

Photomicrographs of Vase-Shaped Microfossils (VSMs) from sample KF17-56 of ...

Published: 13 June 2021
and Cycliocyrillium forms (e.g., [ 98 ]). Scale bar is 50  μ m.
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Photomicrographs of selected VSM species observed in petrographic thin sect...

Photomicrographs of selected VSM species observed in petrographic thin sect...

Published: 01 July 2019
Figure 2. Photomicrographs of selected VSM species observed in petrographic thin sections of the stratigraphic units investigated here. Arrows point to base of collar or neck where present. EFS = England Finder Slide coordinates. Scale bars = 50 μm. ( 1–5 ) Cycliocyrillium simplex Porter et al
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Neoproterozoic vase-shaped microfossils (VSMs) from Callison Lake dolostone...

Neoproterozoic vase-shaped microfossils (VSMs) from Callison Lake dolostone...

Published: 01 August 2014
µm. F: Cycliocyrillium torquata (J1204.18.1; L43/1). Scale = 50 µm.
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New record of vase-shaped microfossils (b, c) and newly discovered minerali...

New record of vase-shaped microfossils (b, c) and newly discovered minerali...

Published: 06 March 2017
Figure 2. New record of vase-shaped microfossils (b, c) and newly discovered mineralized scale microfossils (a, b, d) preserved in phosphatic nodules in the upper formation of the Visingsö Group. (a) Paleomegasquama arctoa , Slide 6, K-35-2. (b) Cycliocyrillium torquata (specimen on left side
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Representative fossils from Chuar, Uinta Mountain, and Pahrump groups and c...

Representative fossils from Chuar, Uinta Mountain, and Pahrump groups and c...

Published: 01 May 2017
) vase-shaped microfossils Cycliocyrillium (J, L, M, N) and Bonniea (K); A, C, E, H, J—Chuar Group; B, D, F, K—Uinta Mountain Group; G and I—Svanbergfjellet Formation, Akademikerbreen Group, Svalbard; L—Horse Thief Springs Formation, Pahrump Group; M—Callison Lake dolostone, Yukon, Canada; N—Ryssö
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Schematic representation of textural relationships of VSMs and matrix in do...

Schematic representation of textural relationships of VSMs and matrix in do...

Published: 01 May 2017
internal ( 2 ) fibrous to bladed palimpsest carbonate cement textures and matrices dominated by mosaic dolospar. ( 1 ) Transverse section of the organic test of an indeterminate VSM; ( 2 ) longitudinal section through siliceous test of Cycliocyrillium torquata
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Optical, CLSM, Raman images, and a Raman spectrum of thin section-embedded ...

Optical, CLSM, Raman images, and a Raman spectrum of thin section-embedded ...

Published: 01 May 2017
Figure 5 Optical, CLSM, Raman images, and a Raman spectrum of thin section-embedded VSMs from dolostone clasts in diamictite of the Neoproterozoic Urucum Formation (Jacadigo Group, Corumbá, Brazil). ( 1 ) Optical image of organic test of Cycliocyrillium simplex
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Photomicrographs of petrographic thin sections containing VSMs from the ...

Photomicrographs of petrographic thin sections containing VSMs from the ...

Published: 01 May 2017
, Arizona, USA) ( 1–3 ) three new monospecific genera ( 4–13 ) and an unnamed form of paired tests ( 15, 16 ): ( 1 ) carbonaceous test of Cycliocyrillium simplex Porter, Meisterfeld, and Knoll, 2003 , enclosed by fibrous cement (GP/5T-2537 D); ( 2
Journal Article

A Tonian age for the Visingsö Group in Sweden constrained by detrital zircon dating and biochronology: implications for evolutionary events

MAŁGORZATA MOCZYDŁOWSKA, VICTORIA PEASE, SEBASTIAN WILLMAN, LINDA WICKSTRÖM, HEDA AGIĆ
Published: 06 March 2017
Geological Magazine (2018) 155 (5): 1175–1189.
DOI: https://doi.org/10.1017/S0016756817000085
...Figure 2. New record of vase-shaped microfossils (b, c) and newly discovered mineralized scale microfossils (a, b, d) preserved in phosphatic nodules in the upper formation of the Visingsö Group. (a) Paleomegasquama arctoa , Slide 6, K-35-2. (b) Cycliocyrillium torquata (specimen on left side...
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740 Ma vase-shaped microfossils from Yukon, Canada: Implications for Neoproterozoic chronology and biostratigraphy

Justin V. Strauss, Alan D. Rooney, Francis A. Macdonald, Alan D. Brandon, Andrew H. Knoll
Journal: Geology
Published: 01 August 2014
Geology (2014) 42 (8): 659–662.
DOI: https://doi.org/10.1130/G35736.1
... µm. F: Cycliocyrillium torquata (J1204.18.1; L43/1). Scale = 50 µm. ...
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The Neoproterozoic geological timescale (after Halverson et al. 2020 ). ...

The Neoproterozoic geological timescale (after Halverson et al. 2020 ). ...

Published: 07 July 2021
; TA, Trezona Anomaly; SE, Shuram Excursion; BACE, Basal Cambrian Carbon Isotope Excursion. Minimum biostratigraphic ranges are also shown for Trachyhystrichosphaera aimika , Cerebrosphaera globosa ( C. buickii ), and the Cycliocyrillium simplex assemblage. Available absolute age constraints
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Species of vase-shaped microfossils (VSMs) and their occurrence in 14 strat...

Species of vase-shaped microfossils (VSMs) and their occurrence in 14 strat...

Published: 01 July 2019
‘ Cycliocyrillium simplex assemblage’ of Riedman et al. ( 2017 ). References per unit: Kwagunt Formation, USA (Porter et al., 2003 ; Morais et al., 2017 ); Callison Lake Formation, Canada (Strauss et al., 2014 ; Cohen et al., 2017 ; Morais et al., 2017 ; Riedman et al., 2017 ); Visingsö Group, Sweden (Knoll
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Figure 9 —The genus Bonniea n. gen. and modern testate amoeban analogs. ...

Figure 9 —The genus Bonniea n. gen. and modern testate amoeban analogs. ...

Published: 01 May 2003
-3). 16–23, B. pytinaia n. sp.; 16, HUPC# 64410 (AK10-53-13A-1); 17, B. pytinaia specimen is the one whose side is in view; the other specimen, viewed aborally, is in the species Cycliocyrillium torquata n. sp. HUPC# 64411 (AK10-53-13A-1). 18, HUPC# 64412 (AK10-53-13A-1); 19, HUPC
Journal Article

Synthesis of the 780–740 Ma Chuar, Uinta Mountain, and Pahrump (ChUMP) groups, western USA: Implications for Laurentia-wide cratonic marine basins

Carol Dehler, George Gehrels, Susannah Porter, Matt Heizler, Karl Karlstrom, Grant Cox, Laura Crossey, Mike Timmons
Journal: GSA Bulletin
Published: 01 May 2017
GSA Bulletin (2017) 129 (5-6): 607–624.
DOI: https://doi.org/10.1130/B31532.1
...) vase-shaped microfossils Cycliocyrillium (J, L, M, N) and Bonniea (K); A, C, E, H, J—Chuar Group; B, D, F, K—Uinta Mountain Group; G and I—Svanbergfjellet Formation, Akademikerbreen Group, Svalbard; L—Horse Thief Springs Formation, Pahrump Group; M—Callison Lake dolostone, Yukon, Canada; N—Ryssö...
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Pre-Mississippian Stratigraphic Architecture of the Porcupine Shear Zone, Yukon and Alaska, and Significance in the Evolution of Northern Laurentia

Karol Faehnrich, William C. McClelland, Maurice Colpron, Charlotte L. Nutt, Rebecca S. Miller, Matthew Trembath, Justin V. Strauss
Journal: Lithosphere
Publisher: GSW
Published: 13 June 2021
Lithosphere (2021) 2021 (1): 7866155.
DOI: https://doi.org/10.2113/2021/7866155
... and Cycliocyrillium forms (e.g., [ 98 ]). Scale bar is 50  μ m. ...
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Journal Article

Silicified microbiota from the Paleoproterozoic Dahongyu Formation, Tianjin, China

Min Shi, Qing-Lai Feng, Maliha Zareen Khan, Stanley Awramik, Shi-Xing Zhu
Published: 06 March 2017
Journal of Paleontology (2017) 91 (3): 369–392.
DOI: https://doi.org/10.1017/jpa.2016.163
...-like in shape, 336 μm in length and 248 μm in width. The neck-like structure is 70 μm in width and 50 μm in length (N=1). This specimen has a similar outline to the vase-shaped microfossil Cycliocyrillium torquata , which was reported from the Neoproterozoic Chuar Group...
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