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Semicytherura

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Journal Article
Published: 01 April 2010
Journal of Micropalaeontology (2010) 29 (1): 1–4.
...ROBIN WHATLEY; GABRIELA CUSMINSKY Abstract The genus Semicytherura Wagner differs from all other members of the Cytherurinae in the nature and course of its inner margin/line of concrescence. The inner lamella is very wide anteriorly, while posteriorly the inner margin extends anteriorly almost...
FIGURES
Journal Article
Published: 01 November 2008
Journal of Micropalaeontology (2008) 27 (2): 135–146.
...HIROKAZU OZAWA; TAKAHIRO KAMIYA Abstract The genus Semicytherura (Ostracoda, Crustacea) is distributed widely in shallow-sea areas of the Northern Hemisphere and occurs commonly in Pliocene and Pleistocene strata along the Japan Sea coasts. Four new species - Semicytherura robustundata sp. nov...
FIGURES | View All (7)
Journal Article
Published: 01 January 2004
Micropaleontology (2004) 50 (4): 381–389.
...Shinnosuke Yamada; Akira Tsukagoshi; Noriyuki Ikeya Abstract The genus Semicytherura develops a broad thin calcareous lamella inside the adult carapace, and this feature is one of the characters which define this taxon. However, neither anatomical nor histological studies have so far been done...
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LV, left valve; RV, right valve; C, carapace; f, female; m, male; j, juveni...
Published: 01 July 2013
Explanation of Plate 3. LV, left valve; RV, right valve; C, carapace; f, female; m, male; j, juvenile; aut., autumn; spr., spring. Scale bar 100 µm. fig. 1. Semicytherura acuticostata ventricosa (Sars, 1866), LV, external, m; Mira-MAS, P1 (aut.). fig. 2. Semicytherura aff. alifera
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SEM photographs of the carapace of  <span class="search-highlight">Semicytherura</span>  sp. A and  S.  sp. B. Sc...
Published: 01 January 2004
TEXT-FIGURE 2 SEM photographs of the carapace of Semicytherura sp. A and S. sp. B. Scale bar indicates 50μm.
 A male left valve of Semicytherura sp. A from external view (SUM-CO-1376).
 B male left valve of Semicytherura sp. A from internal view (SUM-CO-1384).
 C male left valve
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Scanning electron microscope images of  Rimacytheropteron ,  <span class="search-highlight">Semicytherura</span> ...
Published: 01 December 2021
Figure 10. Scanning electron microscope images of Rimacytheropteron , Semicytherura , Eucythere , and Xylocythere species. ( 1 ) Rimacytheropteron longipunctatum (Breman, 1976 ), USNM PAL 771718 (ODP925245), adult RV. ( 2–5 ) Semicytherura pulchra (Coles and Whatley, 1989 ); ( 2, 3
Journal Article
Published: 01 July 2013
Journal of Micropalaeontology (2013) 32 (2): 135–159.
...Explanation of Plate 3. LV, left valve; RV, right valve; C, carapace; f, female; m, male; j, juvenile; aut., autumn; spr., spring. Scale bar 100 µm. fig. 1. Semicytherura acuticostata ventricosa (Sars, 1866), LV, external, m; Mira-MAS, P1 (aut.). fig. 2. Semicytherura aff. alifera...
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Journal Article
Published: 01 December 2021
Journal of Paleontology (2021) 95 (S86): 1–41.
...Figure 10. Scanning electron microscope images of Rimacytheropteron , Semicytherura , Eucythere , and Xylocythere species. ( 1 ) Rimacytheropteron longipunctatum (Breman, 1976 ), USNM PAL 771718 (ODP925245), adult RV. ( 2–5 ) Semicytherura pulchra (Coles and Whatley, 1989 ); ( 2, 3...
FIGURES | View All (17)
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figs 1–3 .  <span class="search-highlight">Semicytherura</span> clavata  ( Brady, 1880 ):  1 , female left valve,...
Published: 01 April 2010
Explanation of Plate 1. figs 1–3 . Semicytherura clavata ( Brady, 1880 ): 1 , female left valve, internal view, MLP-Mi 1110; 2 , female, right valve, external lateral view, MLP-Mi 1111; 3 , male right valve, internal view, MLP-Mi 1113. figs 4–7 . Semicytherura contraria Zhao
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Geographical and geological occurrences of the four  <span class="search-highlight">Semicytherura</span>  species...
Published: 01 November 2008
Fig. 1. Geographical and geological occurrences of the four Semicytherura species described based on original data, except for occurrences from the Omma Formation ( Ozawa, 1996 ) and Kuwae Formation ( Irizuki et al ., 2007 ). Fm, Formation.
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figs 1–8.  <span class="search-highlight">Semicytherura</span> robustundata  sp. nov.:  1,  female, right valve (...
Published: 01 November 2008
Explanation of Plate 1. figs 1–8. Semicytherura robustundata sp. nov.: 1, female, right valve (holotype, MPC-02986); 2, female, left valve (paratype, MPC-02988); 3, male, carapace, right side (paratype, MPC-02987); 4, female, right valve from inside (paratype, MPC-02990); 5, male
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figs 1–9.  <span class="search-highlight">Semicytherura</span> leptosubundata  sp. nov.:  1,  male, right valve (...
Published: 01 November 2008
Explanation of Plate 2. figs 1–9. Semicytherura leptosubundata sp. nov.: 1, male, right valve (holotype, MPC-02997); 2, female, left valve (paratype, MPC-03002); 3, female, left valve from inside (paratype, MPC-02998); 4, female, right valve (paratype, MPC-02999); 5, male, left valve
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TEM photographs of the cuticle of  <span class="search-highlight">Semicytherura</span>  sp. A.
 A epicuticle. (SU...
Published: 01 January 2004
TEXT-FIGURE 3 TEM photographs of the cuticle of Semicytherura sp. A.
 A epicuticle. (SUM-CO-1379) Scale bar = 0.8μm.
 B membranous layer. (SUM-CO-1379) Scale bar = 2.5μm.
 C isthmus. (SUM-CO-1379) Scale bar = 1.7μm.
 D inner lamella cuticle (SUM-CO-1379). Scale bar = 0.5μm.
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SEM photographs of calcified parts of  <span class="search-highlight">Semicytherura</span>  sp. A.
 A outer lamel...
Published: 01 January 2004
TEXT-FIGURE 4 SEM photographs of calcified parts of Semicytherura sp. A.
 A outer lamella cuticle (SUM-CO-1375). Scale bar = 1μm.
 B prismatic layer (SUM-C0-1375). Scale bar = 1μm.
 C pits (SUM-CO-1376). Scale bar = 1μm.
 D anterior margin of left valve (SUM-CO-1375). Scale bar = 10μm.
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Pore systems of  <span class="search-highlight">Semicytherura</span>  sp. A. Arrows indicate the pore canals.
 A ...
Published: 01 January 2004
TEXT-FIGURE 5 Pore systems of Semicytherura sp. A. Arrows indicate the pore canals.
 A mold of right valve (SUM-CO-1377). Scale bar = 50μm.
 B antero-dorsal part of left valve (SUM-CO-1378). Scale bar = 20μm.
 C,D pore canals (SUM-CO-1378). Scale bar = 5μm.
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TEM photographs of the epidermis of  <span class="search-highlight">Semicytherura</span>  sp. A.
 A muscle attach...
Published: 01 January 2004
TEXT-FIGURE 6 TEM photographs of the epidermis of Semicytherura sp. A.
 A muscle attachment area (SUM-CO-1380). Scale bar = 3.3μm.
 B outer and inner epidermal cells (SUM-CO-1381). Scale bar = 0.6μm.
 C organelle (SUM-CO-1382). Scale bar = 2μm.
 D extracellular substance (SUM-CO-1381) Scale
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TEM photographs of the epidermis of  <span class="search-highlight">Semicytherura</span>  sp. A.
 A canal of inne...
Published: 01 January 2004
TEXT-FIGURE 7 TEM photographs of the epidermis of Semicytherura sp. A.
 A canal of inner lamella cuticle (SUM-CO-1383). Scale bar = 0.8μm.
 B posterior margin of the epidermis (SUM-CO-1381). Scale bar = 3.3μm.
 C outer and inner epidermal cells (SUM-CO-1382) Scale bar = 3.3μm.
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Positions of the correlated 12 pores on the anterior part of the left valve...
Published: 01 November 2008
Fig. 5. Positions of the correlated 12 pores on the anterior part of the left valve of Semicytherura leptosubundata sp. nov. and S. subundata ( Hanai, 1957 ).
Journal Article
Published: 01 November 2008
Journal of Micropalaeontology (2008) 27 (2): 161–175.
..., post-2 Ma (Table 2 ; Ozawa & Kamiya, 2005a). A study of the Fujikotogawa Formation by Irizuki (1994 ) showed that the two genera Hemicythere and Semicytherura had already diversified by the Late Miocene in the Japan Sea (8–7 Ma) in both families. Hemicythere ( H. kitanipponica...
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... associations of biofacies II and III are intermixed with a large number of shallow-water species belonging mainly to Xestoleberis, Aurila, and Semicytherura. The shallow-water species consist almost exclusively of juvenile specimens and they are probably allochthonous. A number of laminated beds...