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Aspiculum

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Journal Article

EARLIEST ORDOVICIAN (EARLY TO MIDDLE TREMADOCIAN) RADIOLARIAN FAUNAS OF THE COW HEAD GROUP, WESTERN NEWFOUNDLAND

MUN-ZU WON, WILLIAM J. IAMS, KATHERINE REED
Published: 01 May 2005
Journal of Paleontology (2005) 79 (3): 433–459.
DOI: https://doi.org/10.1666/0022-3360(2005)079<0433:EOETMT>2.0.CO;2
..., 10 genera, and 24 species. Of these, one family Aspiculumidae, one genus, and 19 species are new. The new family and new genus are Aspiculumidae and Aspiculum , respectively. The new species are Pararcheoentactinia ? cowheadensis , Aspiculum eccentricum , Aspiculum ? angulatum , Parechidnina delicata...
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Radiolarians extracted from limestones from the Piccadilly Quarry, Newfoundland, Canada. Images are scanning electron micrographs, except (3, 4), which are transmitted-light images. Scale bar = 100 μm. (2, 4) Aspiculum sp. A; PD13; (3, 7, 8) Aspiculum sp. B; PD13; (1, 10, 13) Aspiculum irregulare n. sp.; PD13, (10 holotype UQSEES_2015PD13_01); (5, 6) Westernbrookia sp.; PD13; (9, 11, 12) Westernbrookia polygonata n. sp.; PD13; (14–17) Spongentactinia nazarovi n. sp.; (14) PD09; (15, 17) PD13; (16) PD05, holotype UQSEES_2015PD05_01.

Radiolarians extracted from limestones from the Piccadilly Quarry, Newfound...

Published: 01 September 2021
Figure 9. Radiolarians extracted from limestones from the Piccadilly Quarry, Newfoundland, Canada. Images are scanning electron micrographs, except ( 3, 4 ), which are transmitted-light images. Scale bar = 100 μm. ( 2, 4 ) Aspiculum sp. A; PD13; ( 3, 7, 8 ) Aspiculum sp. B; PD13; ( 1, 10, 13
Journal Article

Earliest Arenig Radiolarians from the Cow Head Group, Western Newfoundland

Mun-Zu Won, William J. Iams
Published: 01 January 2011
Journal of Paleontology (2011) 85 (1): 156–177.
DOI: https://doi.org/10.1666/10-102.1
... (flattened bars) and/or thin bars forming the mesh of the shell wall, shell layering indistinctly developed. Proloculus distinct or indistinct. Genus Aspiculum Won et al., 2005 It is not adequate to describe the mesh element of B. ? stellata as bandage. However, the element...
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Journal Article

Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada

Sarah Kachovich, Jonathan C. Aitchison
Published: 01 September 2021
Journal of Paleontology (2021) 95 (5): 913–943.
DOI: https://doi.org/10.1017/jpa.2021.18
...Figure 9. Radiolarians extracted from limestones from the Piccadilly Quarry, Newfoundland, Canada. Images are scanning electron micrographs, except ( 3, 4 ), which are transmitted-light images. Scale bar = 100 μm. ( 2, 4 ) Aspiculum sp. A; PD13; ( 3, 7, 8 ) Aspiculum sp. B; PD13; ( 1, 10, 13...
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List of archaeospicularians, entactinarians, and other radiolarians of unce...

Published: 01 September 2021
. A 10 19 31 60 Entactiniid gen. and sp. B 10 11 10 27 58 Entactiniid gen. and sp. C 8 5 9 22 44 Incertae Sedis Aspiculidae Aspiculum irregulare n. sp. 3 3 Aspiculum sp. A 2 2 Aspiculum sp. B
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Compilation of μ-CT models, SEM images, and line drawings illustrating the family Aspiculidae from sample PD13. (1, 4, 7) Nyfrieslandia sp. aff. N. complicata; (2, 5, 8) Nyfrieslandia ramosissima n. sp.; (3, 6, 9) Westernbrookia polygonata n. sp.; (10, 11) Aspiculum irregulare n. sp.; (12) line drawing of Upper Ordovician Kalimnasphaera maculosa after Webby and Blom (1986).

Compilation of μ-CT models, SEM images, and line drawings illustrating the ...

Published: 01 September 2021
Figure 7. Compilation of μ-CT models, SEM images, and line drawings illustrating the family Aspiculidae from sample PD13. ( 1, 4, 7 ) Nyfrieslandia sp. aff. N . complicata ; ( 2, 5, 8 ) Nyfrieslandia ramosissima n. sp.; ( 3, 6, 9 ) Westernbrookia polygonata n. sp.; ( 10, 11 ) Aspiculum
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Figure 7. Scale bar equals 50 µm. 1–4, Parechidnina aff. P. aspinosa Won in Won and Below 1999: 1, GSC 130980; 2, GSC 130981; 3, GSC 130982; 4, GSC 130983; 5–8, Neoaspiculum? laxum n. sp.; 5, GSC 130984; 6, holotype, GSC 130985; 7, GSC 130986; 8, GSC 130987; 9–13a, b, Aspiculum jamesi parajamesi n. ssp.; 9, GSC 130988; 10, GSC 130989; 11, GSC 130990; 12, GSC 130992; 13, GSC 131992; 14, Protoentactinia primigena s.l. Won et al., 2005, GSC 131993; 15–18, Protospongentactinia spongiosaWon et al., 2007: 15, GSC 131994; 16, GSC 131995; 17, GSC 131996; 18, GSC 131997.

Figure 7. Scale bar equals 50 µm. 1–4, Parechidnina aff. P. aspinosa Wo...

Published: 01 January 2011
, Aspiculum jamesi parajamesi n. ssp.; 9, GSC 130988; 10, GSC 130989; 11, GSC 130990; 12, GSC 130992; 13, GSC 131992; 14, Protoentactinia primigena s.l. Won et al., 2005 , GSC 131993; 15–18, Protospongentactinia spongiosa Won et al., 2007 : 15, GSC 131994; 16, GSC 131995; 17, GSC 131996
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Figure7—A distance of 6 mm on these photographs is equivalent to the length (in μm) noted in the parentheses. 1, 2a, 2b,Aspiculum? angulatum n. sp. 1, GSC-125500 (SP30A-1), (28.5). 2, Holotype, GSC-125501 (SP30B-1), (28.5), single specimen photographed from two different angles. 3, Aspiculumid, gen. and sp. indeterminate 1, GSC-125502 (GP26B-43), (28.5). 4, Aspiculumid. gen. and sp. indeterminate 2, GSC-125503 (SP30C-3), (28.5). 5, 6, Aspiculumid gen. and sp. indeterminate 3. 5, GSC-125504 (BS64D-3), (28.5). 6, GSC-125505 (BS64D-2), (25). 7, Aspiculumid gen. and sp. indeterminate 4, GSC-125506 (BS64D-4), (28.5). 8, 9,Parechidnina sp. A. 8, GSC-125507 (MP36A-16), (33.3), outer part of the shell is not preserved. 9, GSC-125508 (MP36D-7), (25). 10–17a, 17b,Parechidnina nevadensisKozur, Mostler, and Repetski, 1996, Morphotype 1. 10, GSC-125509 (GP26E-9), (28.5). 11, GSC-125510 (GP26A-13), (40). 12, GSC-125511 (GP26A-15), (33.3). 13, GSC-125512 (GP26E-19), (28.5). 14, GSC-125513 (GP26-11-11), (33.3). 15, GSC-125514 (GP26-11-10), (28.5). 16a, 16b, GSC-125515 (BS61-8), (28.5), single specimen photographed from two different angles. In 16b, a large opening (pylome) is evident in this elongated shell. 17a, 17b, GSC-125516 (BS61-7), (28.5), single specimen photographed from two different angles. In 17b, a large opening (pylome) is evident in this elongated shell

Figure 7 —A distance of 6 mm on these photographs is equivalent to the len...

Published: 01 May 2005
Figure 7 —A distance of 6 mm on these photographs is equivalent to the length (in μm) noted in the parentheses. 1, 2a, 2b, Aspiculum ? angulatum n. sp. 1, GSC-125500 (SP30A-1), (28.5). 2, Holotype, GSC-125501 (SP30B-1), (28.5), single specimen photographed from two different angles. 3
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Figure5—A distance of 6 mm on these photographs is equivalent to the length (in μm) noted in the parentheses. 1–4,Parechidnina variospina n. sp. 1, Central position of the basal layer, GSC-122105 (MP36D-3), (50). 2–4, Note the slightly eccentric structure of the shell wall. 2, GSC-122106 (GP26I-1), (50). 3, GSC-122107 (GP26E-17), (33.3). 4, GSC-122108 (GP26B-23), (50). 5–10b,Aspiculum eccentricum n. sp., note the eccentric nature of the shell wall. 5, 6, Weblike shell wall structure; 5, GSC-122109 (MP42B-6), (50), innermost part three-dimensionally interwoven. 6, GSC-122110 (MP42D-5), (50), hollow central cavity within the basal layer. 7, GSC-122111 (MP42F-5), (66.6). 8, 9, Layered shell wall structure; 8, GSC-122112 (MP42B-1), (50), the layered shell wall structure can be partly seen through the broken outermost layer. 9, GSC-122113 (MP42C-2), (58.8), layered shell wall structure is easily observed because the outermost shell layer is not preserved. 10a, 10b, Holotype, GSC-122114 (MP42C-1), (66.6); note variation in meshwork architecture within a single specimen; part of the innermost shell, where the opening is developed, is exposed. 11, 12,Pararcheoentactinia? cowheadensis s.s. n. sp., Morphotype 1. 11, Holotype, GSC-122115 (GP26E-32), (40). 12, GSC-122116 (GP26B-21), (20). 13,Pararcheoentactinia? cowheadensis s.l. n. sp., Morphotype 2, GSC-125477 (BS64B-1), (20). 14–16,Pararcheoentactinia reedae s.s. Won and Iams, 2002, Morphotype 1. 14, GSC-125478 (GP26B-27), (50). 15, GSC-125479 (GP26B-15), (33.3). 16, GSC-125480 (GP26E-29), (28.5), very short spines. 17a, 17b, 18,Pararcheoentactinia reedae s.l. Won and Iams, 2002 Morphotype 7. 17a, 17b, Holotype, GSC-125481 (GP26A-7), (22.2, 8.33), no spinules on the rays. 18, GSC-125482 (GP26A-22), (40)

Figure 5 —A distance of 6 mm on these photographs is equivalent to the len...

Published: 01 May 2005
-122106 (GP26I-1), (50). 3, GSC-122107 (GP26E-17), (33.3). 4, GSC-122108 (GP26B-23), (50). 5–10b, Aspiculum eccentricum n. sp., note the eccentric nature of the shell wall. 5, 6, Weblike shell wall structure; 5, GSC-122109 (MP42B-6), (50), innermost part three-dimensionally interwoven. 6, GSC