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Palaeospiculum

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Figure3—A distance of 6 mm on these photographs is equivalent to a length of 40 μm unless otherwise noted in the parenthesis without a measuring unit. 1–3, Palaeospiculum greenpointensis n. sp.; 1, GSC-121917(GP3-36), (48); 2, holotype, GSC-121918(GP3-17), (48); 3, GSC-121919(GP3-16), (48). 4–5, Palaeospiculum martinpointensis n. sp.; 4, GSC-121920(GP2-40), (48); 5, holotype, GSC-121921(GP3-18). 6–8, Variants of Palaeospiculum martinpointensis n. sp.; 6–7, GSC-121922(GP2-26), (43.4, 20), rays are meeting point-centered; 8, GSC-121923(GP2-40), rays are median bar-centered. 9–11, Palaeospiculum hexaradiatum n. sp.; 9, holotype, GSC-121924(BPS6-36); 10, GSC-121925(BPS1′-7); 11, GSC-121926(BPS1′-3). 12–14, Palaeospiculum grosmornensis n. sp.; 12, holotype, GSC-121927(GP2-4), (66.6); 13–14, GSC-121928(MP5-3), (40, 20). 15–18, Palaeospiculum tetraradiatum n. sp.; 15, GSC-121929(BPS4-7); 16, GSC-121930(BPS4-1); 17–18, holotype, GSC-121931(BPS4-26), (66.6, 16.6), arrows (black) indicate the points where the first-order spinule set arises on each ray, and an arrow (white) points to the central point of the four-rayed spicule. 19, Grosmorneus sp. A, GSC-121932(BPS4-24), (66.6). 20, Protoentactinia sp. cf. P. gracilispinosaKozur et al., 1996, GSC-121933(BPS4-18), arrow indicates the meeting point where six rays meet.

Figure 3 —A distance of 6 mm on these photographs is equivalent to a lengt...

Published: 01 January 2002
Figure 3 —A distance of 6 mm on these photographs is equivalent to a length of 40 μm unless otherwise noted in the parenthesis without a measuring unit. 1–3 , Palaeospiculum greenpointensis n. sp.; 1, GSC-121917(GP3-36), (48); 2, holotype, GSC-121918(GP3-17), (48); 3, GSC-121919(GP3-16
Journal Article

The Beothuka terranova (Radiolaria) assemblage and its importance for the understanding of early Ordovician radiolarian evolution

JORG MALETZ, DAVID L. BRUTON
Published: 01 November 2005
Geological Magazine (2005) 142 (6): 711–721.
DOI: https://doi.org/10.1017/S0016756805001391
.... B: (h) PMO 205.717/188, complete specimen with short spines. (j) PMO 205.717/08, juvenile form? (i) Parechidnina sp. A, PMO 205.718/25, long spine with labyrinthine mesh at base. (k) Palaeospiculum sp., PMO 205.718/28. (l) ? Entactinia sp., PMO 205.718/190, showing ectopically placed spicule...
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View PDF for article title, The Beothuka terranova (Radiolaria) assemblage and its importance for the understanding of early Ordovician radiolarian evolution
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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
... , P. variospina , Curvechidnina multiramosa , Echidnina conexa , E. laxa , E. semiconexa , E. severedeformis , Echidnina ? immanis , Palaeospiculum curvum , P. multifurcatum , P. neofurcatum , P. tetractium , Protoentactinia deformis , P. kozuriana , P. primigena , and P. transformis...
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View PDF for article title, EARLIEST ORDOVICIAN (EARLY TO MIDDLE TREMADOCIAN) RADIOLARIAN FAUNAS OF THE COW HEAD GROUP, WESTERN NEWFOUNDLAND
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Journal Article

Cambrian Radiolaria from the Georgina Basin, Queensland, Australia

Mun-Zu Won, Raimond Below
Published: 01 October 1999
Micropaleontology (1999) 45 (4): 325–363.
.... The other new family, Palaeospiculumidae n. fam., consists of a point-centered spicular skeleton without a spherical shell capsule; the family is composed of the single genus Palaeospiculum n. gen. The taxa belonging to this family might perhaps be considered to be sponge spicule, but they differ from...
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Figure11—A distance of 6 mm on these photographs is equivalent to the length (in μm) noted in the parentheses. 1a, 1b–9, Various protoentactinids. 1a, 1b, GSC-125568 (GP25G-1), (40, 14.2), outermost branches are curved and fused at their ends. 2a, 2b, GSC-125569 (BPN82-4-7), (40, 16.6), most outermost branches are fused with one another. 3a, 3b, GSC-125570 (GP26A-29), (50, 22.2), numerous spinules, developed on the branches, are connected forming a fused shell wall. 4, GSC-125571 (GP25D-8), (66.6), note the very large open spherical shell, no branches are fused. 5, GSC-125572 (GP25D-4), (40), all outermost branches are long and directed radially outward. 6, GSC-125573 (GP25B2-50), (43.5), very long outermost branches. 7, GSC-125574 (GP25B2-53), (40), all branches are of similar diameter. 8, GSC-125575 (GP25A2-12), (43.5), showing the spicule system with a long median bar. 9, GSC-125576 (GP25D-6), (43.5), long outermost branches are strongly curved with kinks and flexures visible. 10a, 10b,Ramuspiculum sp. A, GSC-125577 (BPN82-4-2), (25, 15.1). 11–14,Palaeospiculum multifurcatum n. sp. 11, GSC-125578 (GP26A-50), (28.5). 12, GSC-125579 (BPN94-1), (22.2). 13, Holotype, GSC-125580 (GP26A-40), (33.3). 14, GSC-125581 (GP26A-35), (33.3). 15,Palaeospiculum tetractinum n. sp., holotype, GSC-125582 (SP10-3), (25)

Figure 11 —A distance of 6 mm on these photographs is equivalent to the le...

Published: 01 May 2005
bar. 9, GSC-125576 (GP25D-6), (43.5), long outermost branches are strongly curved with kinks and flexures visible. 10a, 10b, Ramuspiculum sp. A, GSC-125577 (BPN82-4-2), (25, 15.1). 11–14, Palaeospiculum multifurcatum n. sp. 11, GSC-125578 (GP26A-50), (28.5). 12, GSC-125579 (BPN94-1), (22.2
Journal Article

LATE CAMBRIAN RADIOLARIAN FAUNAS AND BIOSTRATIGRAPHY OF THE COW HEAD GROUP, WESTERN NEWFOUNDLAND

MUN-ZU WON, WILLIAM J. IAMS
Published: 01 January 2002
Journal of Paleontology (2002) 76 (1): 1–33.
DOI: https://doi.org/10.1666/0022-3360(2002)076<0001:LCRFAB>2.0.CO;2
...Figure 3 —A distance of 6 mm on these photographs is equivalent to a length of 40 μm unless otherwise noted in the parenthesis without a measuring unit. 1–3 , Palaeospiculum greenpointensis n. sp.; 1, GSC-121917(GP3-36), (48); 2, holotype, GSC-121918(GP3-17), (48); 3, GSC-121919(GP3-16...
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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
... the relationships among the initial spicule, inner spicular system, main spines, and outer sphere. ( 5 ) SEM image of the Lower Ordovician Palaeospiculum neofurcatum re-illustrated from Won et al., 2005 (fig. 10.18) with the inner spicular system highlighted. ( 1–5 ) are shown at the same scale. Figure...
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(1–4, 6, 7) Compilation of μ-CT models, line drawings, and SEM image illustrating the complex spicular system and skeletal development of Neopalaeospiculum sp. and Neopalaeospiculum piccadilliensis n. sp. (1–3) μ-CT model of Neopalaeospiculum sp. (M1S04 from PD13) with digitally segmented spicular system at different orientations; (4) μ-CT model of Neopalaeospiculum piccadilliensis n. sp. (UQSEES_M1S04: holotype from PD09) with digitally segmented spicular system at different orientations; (6) diagram of Neopalaeospiculum sp. showing the relationship of the spicular system and main spines (ms); (7) diagram of Neopalaeospiculum piccadilliensis n. sp. showing the relationships among the initial spicule, inner spicular system, main spines, and outer sphere. (5) SEM image of the Lower Ordovician Palaeospiculum neofurcatum re-illustrated from Won et al., 2005 (fig. 10.18) with the inner spicular system highlighted. (1–5) are shown at the same scale.

( 1–4, 6, 7 ) Compilation of μ-CT models, line drawings, and SEM image illu...

Published: 01 September 2021
of the spicular system and main spines (ms); ( 7 ) diagram of Neopalaeospiculum piccadilliensis n. sp. showing the relationships among the initial spicule, inner spicular system, main spines, and outer sphere. ( 5 ) SEM image of the Lower Ordovician Palaeospiculum neofurcatum re-illustrated from Won et al
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Upper Cambrian to lower Ordovician radiolarian faunas and time scale. For the highly diverse Cambrian faunas of Won &amp; Iams (2002) only the genus names are given for easier comparison. Grey underlain areas show uncertainties in biostratigraphic ranges. Dotted lines indicate known ranges of genera. Specimens: (a) Antygopora sp., JM 3/60, western Newfoundland, Isograptus victoriae maximodivergens Biozone. (b) Antygopora ordovicica n. sp., JM 3/68, western Newfoundland, Isograptus victoriae maximodivergens Biozone. (c) Secuicollacta sp. Llandovery, Dalarna, Sweden. (d) Entactinid species indet., PMO 205.716/44, Spitsbergen, 102 m level. (e) Beothuka terranova, PMO 205.718/58, Spitsbergen. (f ) Palaeospiculum sp. PMO 205.715/55, Spitsbergen, 102 m level. (g) Subechidnina florea, western Newfoundland (Won &amp; Iams, 2002).

Upper Cambrian to lower Ordovician radiolarian faunas and time scale. For t...

Published: 01 November 2005
) Entactinid species indet., PMO 205.716/44, Spitsbergen, 102 m level. (e) Beothuka terranova , PMO 205.718/58, Spitsbergen. (f ) Palaeospiculum sp. PMO 205.715/55, Spitsbergen, 102 m level. (g) Subechidnina florea , western Newfoundland ( Won & Iams, 2002 ).
Image
Figure4—A distance of 6 mm on these photographs is equivalent to the length (in μm) noted in the parentheses. 1a, 1b, 2,Echidnina laxa n. sp. 1, Holotype, GSC-122090 (GP25C-23), (50,50). 2, GSC-122091 (GP26f-15), (25). 3–6,Curvechidnina multiramosa n. sp. 3, GSC-122092 (MP36d-19), (25). 4, Holotype, GSC-122093 (GP26A-63), (22.2). 5a, 5b, GSC-122094 (GP25C-3), (33.3,18.8). 6, GSC-122095 (GP26E-33), (40). 7, 8a, 8b,Echidnina severedeformis n. sp. 7, GSC-122096 (GP25C-4), (28.5). 8a, 8b, Holotype, GSC-122097 (GP25C-32), (25, 25). 9a, 9b,Echidnina sp. B, GSC-122098 (SP30A-4), (28.5, 12.5). 10–15,Palaeospiculum curvum n. sp. 10, GSC-122099 (GP26A-58), (33.3). 11, GSC-122100 (GP26A-59), (33.3). 12, Holotype, GSC-122101 (MP36A-24), (28.5). 13a, 13b, GSC-122102 (GP26A-62), (33.3, 14.2). 14, GSC-122103 (GP26A-61), (20). 15, GSC-122104 (GP26A-60), (20)

Figure 4 —A distance of 6 mm on these photographs is equivalent to the len...

Published: 01 May 2005
-122098 (SP30A-4), (28.5, 12.5). 10–15, Palaeospiculum curvum n. sp. 10, GSC-122099 (GP26A-58), (33.3). 11, GSC-122100 (GP26A-59), (33.3). 12, Holotype, GSC-122101 (MP36A-24), (28.5). 13a, 13b, GSC-122102 (GP26A-62), (33.3, 14.2). 14, GSC-122103 (GP26A-61), (20). 15, GSC-122104 (GP26A-60
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Table 1 —Abundance of latest Cambrian and early and middle Tremadocian tax...

Published: 01 May 2005
., Palaeospiculum ; Proto ., Protoentactinia ; Parech ., Parechidnina ; M1, M2, M7, Morphotype 1, Morphotype 2, Morphotype 7; p-type, pylomate form; TRA, Tremadocian radiolarian assemblage; L. Camb., latest Cambrian; Assem., assemblage; C. p ., Cordylodus proavus ; R. m ., Rossodus manitouensis
Image
(a–d) Antygopora ordovicica n. gen. n. sp.: (a) PMO 205.718/13, holotype, showing two tests connected by few beams. (b) PMO 205.718/22, outer test with honeycomb surface structure. (c) PMO 205.718/44, specimen with broken outer sphere. (d) PMO 205.717/00, surface of inner sphere with several beams. (e, f ) Beothuka terranovaAitchison, Flood &amp; Malpas, 1998: (e) PMO 205.718/58, typical example. (f ) PMO 205.718/129, broken specimen showing inside and grooved base of spine. (g) Antygopora (?) sp. PMO 205.718/73, specimen with one test bearing large pores with raised rims and about 10–12 spines. Indication of inner beams or spicule is visible on lower left side. (h, j) Parechidnina sp. B: (h) PMO 205.717/188, complete specimen with short spines. (j) PMO 205.717/08, juvenile form? (i) Parechidnina sp. A, PMO 205.718/25, long spine with labyrinthine mesh at base. (k) Palaeospiculum sp., PMO 205.718/28. (l) ?Entactinia sp., PMO 205.718/190, showing ectopically placed spicule with six rays. (m) ?Parechidnina sp., PMO 205.718/107, fragment. (n) Ramuspiculum sp., PMO 205.718/59. (o) PMO 205.717/43, re-crystallized sphere indet.

(a–d) Antygopora ordovicica n. gen. n. sp.: (a) PMO 205.718/13, holotype,...

Published: 01 November 2005
) Palaeospiculum sp., PMO 205.718/28. (l) ? Entactinia sp., PMO 205.718/190, showing ectopically placed spicule with six rays. (m) ? Parechidnina sp., PMO 205.718/107, fragment. (n) Ramuspiculum sp., PMO 205.718/59. (o) PMO 205.717/43, re-crystallized sphere indet.
Image
Figure10—A distance of 6 mm on these photographs is equivalent to the length (in μm) noted in the parentheses. 1–5,Protoentactinia primigena s.s. n. sp., Morphotype 1, with or without spinulets on the branches. 1, Holotype, GSC-125549 (GP25E-6), (25). 2, GSC-125550 (SP10-1), (40). 3, GSC-125551 (GP25E-2), (40). 4, GSC-125552 (BS62-5), (50). 5, GSC-125553 (GP26B-26), (50). 6–9,Protoentactinia primigena s.l. n. sp., Morphotype 2, with thorns on the branches. 6, GSC-125554 (BS61-2), (43.5). 7, GSC-125555 (BS82-4-3), (40). 8, GSC-125556 (GP26D-17), (40). 9, GSC-125557 (BS64B-36), (25). 10, 11a, 11b,Protoentactinia gracilispinosa s.l. Kozur, Mostler, and Repetski, 1996, showing numerous thorns on the branches. 10, GSC-125558 (BS61-1), (50). 11, GSC-125559 (BS61-5), (50, 12.5), branches are fused where they cross one another (arrow). 12, 16,Protoentactinia kozuriana s.s. n. sp., Morphotype 1, in which outer spines are the extension of the rays of the spicule. 12, GSC-125560 (GP25B2-34), (33.3). 16, GSC-125561 (GP25B2-4), (33.3). 13–15,Protoentactinia deformis n. sp. 13, GSC-125562 (GP26B-30), (28.5). 14, holotype, GSC-125563 (GP26B-31), (28.5). 15, GSC-125564 (GP26B-5), (28.5). 17–19,Palaeospiculum neofurcatum n. sp. 17, GSC-125565 (BS64E-1), (25). 18, Holotype, GSC-125566 (MP42E-3), (50). 19, GSC-125567 (MP42E-2), (50)

Figure 10 —A distance of 6 mm on these photographs is equivalent to the le...

Published: 01 May 2005
). 15, GSC-125564 (GP26B-5), (28.5). 17–19, Palaeospiculum neofurcatum n. sp. 17, GSC-125565 (BS64E-1), (25). 18, Holotype, GSC-125566 (MP42E-3), (50). 19, GSC-125567 (MP42E-2), (50)
Journal Article

Integrated analyses constraining the provenance of sandstones, mudstones, and conglomerates, a case study: the Laojunshan conglomerate, Qilian orogen, northwest China

Zhen Yan, Wenjiao Xiao, Zongqi Wang, Jilian Li
Published: 08 August 2007
Canadian Journal of Earth Sciences (2007) 44 (7): 961–986.
DOI: https://doi.org/10.1139/e07-010
... of blocks of basalt, gabbro, carbonate, chert, and quartzite in a sandstone matrix, occurs along the northern margin of the Central Qilian terrane. Silurian radiolaria of Haplopolus sp., Palaeospiculum sp. aff. P. martinaintensis Won, Pseudospongoprumum? sp., and conodont Ozarkodina pirara? occur...
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View PDF for article title, Integrated analyses constraining the provenance of sandstones, mudstones, and conglomerates, a case study: the Laojunshan conglomerate, Qilian orogen, northwest China
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