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110 results for “sclerites”
FIGURES 11 – 12. Fig. 11, sclerite IX in A new Argentinian species of Bembidion (Chilioperyphus) (Coleoptera: Carabidae: Bembidiini) with accessory setae
FIGURES 11 – 12. Fig. 11, sclerite IX of Bembidion (Chilioperyphus) cuyanus nov. sp. Fig. 12, female genital tract of Bembidion (Chilioperyphus) cuyanus nov. sp. Scale bar = 0.5 mm.
Fig. 11. The tommotiid Shetlandia multiplicata Wrona, 2004, unknown type sclerite fragments from the Cambrian Series 2, Stages 3, 4 in Camenellan tommotiids from the Cambrian Series 2 of East Antarctica: Biostratigraphy, palaeobiogeography, and systematics
Fig. 11. The tommotiid Shetlandia multiplicata Wrona, 2004, unknown type sclerite fragments from the Cambrian Series 2, Stages 3, 4, Shackleton Limestone, Holyoake Range, Transantarctic Mountains, East Antarctica. A. NRM X10020, general view (A1), detail showing arched growth series (A2). B. NRM X10021, general view (B1), detail of broken margin (B2). C. NRM X10022, general view (C1), detail of comarginal ribs and broken edge (C2). D. NRM X10023. E. NRM X10024. Scale bars 200 µm, except B2, 100 µm. A–C taken with backscattered electron detector.
Fig 2 in Ordovician enigmatic sclerite-type elements from western Argentina: possible oldest axial components of alcyonacean octocorals
Fig 2. Alcyonacean octocoral Catenatus argentinus gen. et sp. nov. sclerite-type elements from the Middle Ordovician (Darriwilian), Lenodus variabilis– Yangtzeplacognathus crassus zones, San Juan Formation, San Juan Province, Argentina and its chemical composition by surface EDX analysis. A. Siliceous sclerite-type element, CEGH-UNC 27474, sample LG42 (unpolished sample). B. Phosphatic sclerite-type, CEGH-UNC 27475, sample RIN34. C. Partially broken element showing a solid inner structure, CEGH-UNC 27471, sample LG42. D, E. Thin sections of isolated elements of Catenatus argentinus gen. et sp. nov., showing the internal homogeneous structure, CEGH-UNC 27472, sample LG42 (D), and CEGH-UNC 27473, sample FSJ 3º hardground (E). Scale bars 100 μm.
Fig. 1 in Ordovician enigmatic sclerite-type elements from western Argentina: possible oldest axial components of alcyonacean octocorals
Fig. 1. The geographical and geological context of the Ordovician alcyonacean octocoral Catenatus argentinus gen. et sp. nov. from the San Juan Formation, Argentina. A. Location map of the studied localities with Ordovician alcyonacean sclerite-type elements from the Argentine Precordillera, San Juan Province, Argentina (1, Oculta Creek, Sierra de Los Cauquenes; 2, Los Gatos Creek, Cerro Viejo; 3, Amarilla Creek, Cerro Viejo; 4, Punta Negra Anticline; 5, Sierra de Rinconada). B. Simplified stratigraphic column of the San Juan Formation in the Argentine Precordillera, with location of the productive samples.
Рис. 2. Chagressia antis sp. nov.: A, B — генитаΛии самца (общий виΑ и эΑеагус); C — стернит и тергит 8-го сегмента брюшка самца, пучки анΑрокониаΛьных чешуек и пΛастинчатые скΛериты; D, E — генитаΛии самки (общий виΑ и обΛасть остиума); a. sc — анΑрокониаΛьные чешуйки; l. scl — пΛастинчатый скΛерит Fig. 2. Chagressia antis sp. nov.: A, B — male genitalia (general view and aedeagus); C — sternite and tergite of the 8thabdominal segment of the male, bundles of androconial scales and lamellar sclerites; D, E — female genitalia (general view and ostium area); a. sc — androconial scales; l. scl — lamellar sclerites in Chagressia antis gen. n., sp. n. (Lepidoptera: Gelechiidae, Gelechiinae) from Panama
Рис. 2. Chagressia antis sp. nov.: A, B — генитаΛии самца (общий виΑ и эΑеагус); C — стернит и тергит 8-го сегмента брюшка самца, пучки анΑрокониаΛьных чешуек и пΛастинчатые скΛериты; D, E — генитаΛии самки (общий виΑ и обΛасть остиума); a. sc — анΑрокониаΛьные чешуйки; l. scl — пΛастинчатый скΛерит Fig. 2. Chagressia antis sp. nov.: A, B — male genitalia (general view and aedeagus); C — sternite and tergite of the 8thabdominal segment of the male, bundles of androconial scales and lamellar sclerites; D, E — female genitalia (general view and ostium area); a. sc — androconial scales; l. scl — lamellar sclerites
Fig. 67. Problematic calcium phosphatic sclerites Fomitchella acinaciformis Missarzhevsky, 1977 in Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia
Fig. 67. Problematic calcium phosphatic sclerites Fomitchella acinaciformis Missarzhevsky, 1977, from early Cambrian Emyaksin Formation, eastern flank of the Anabar Uplift, Siberia, Russia; sample 5a/18.5, section 96-5a. A SMNH X5962. B. SMNH X5964. C. SMNH X5966. D. SMNH X5967. E. SMNH X5963. F. SMNH X5965. G. SMNH X5968. A1, A3, C, D2, G, lateral; A2, D1, oblique apertural; B, F, oblique apical views; A4, E2, outer surface with fibres at apertural margin. Scale bar 100 μm (A4, E2), 250 μm (A3), 500 μm (A1, A2, B–D, E1, F, G).
Fig. 66. Problematic calcium phosphatic sclerites Fomitchella aff. acinaciformis Missarzhevsky, 1977 in Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia
Fig. 66. Problematic calcium phosphatic sclerites Fomitchella aff. acinaciformis Missarzhevsky, 1977 (A–E), Fomitchella acinaciformis Missarzhevsky, 1977 (F, G), and Fomitchella sp. (H), from early Cambrian Emyaksin Formation, eastern flank of the Anabar Uplift, Siberia, Russia; samples 5a/10.5 (A, B, E), 5a /17.5 (C, F–H), 5a/9 (D), section 96-5a. A–H. SMNH X5954–5961, respectively. A1, oblique apical; A3, C2, D2, H3, apical; A2, B, C3, D1, E1, F, G2, G3, H1, H2, lateral; E2, apertural; G1, oblique apertural views; C1, close-up of apertural margin with fibres (note two inserted sclerites). Scale bar 50 μm (C1), 250 μm (A1, B, C2, C3, E, H), 500 μm (A2, A3, D, F, G).
Fig. 2. Schematic drawing showing measured parameters and descriptive terminology used for sclerite types A–H in Trachyplax arctica, a new multiplated problematic fossil from the lower Cambrian of North Greenland
Fig. 2. Schematic drawing showing measured parameters and descriptive terminology used for sclerite types A–H. Abbreviations: A, apical angle; Ai, apex interarea; L, length; Lr, length of rostrum; Ls, length of shield; H, height; W, width; Wai, width of apex interarea; Wr, width of rostrum; Ws, width of shield. Not to scale.
FIGURE 6. Tridentisis candelabrum, paratype specimen MOL101-1 sclerites from A in Toward a revision of the bamboo corals: Part 6, Illuminating a new candelabrum genus (Octocorallia: Keratoisididae)
FIGURE 6. Tridentisis candelabrum, paratype specimen MOL101-1 sclerites from A, body, intertentacular needles, B, body wall, C, tentacles, D, coenenchyme, and E, pharynx.
Figure 9 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 9. Holotype of Tobagogorgia hardyi, gen. et sp. nov. (A) Preserved alcohol colony, detail and a dry colony paratype; (B) spiny bent spindles from the surface layer; (C) polyp sclerites; (D) capstans from the inner layer; (E) spindles from the inner layer. Scale bars: 0.02 mm (B–E).
Figure 7 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 7. SEM stereopairs of Pinnigorgia flava (Nutting). (A–C) C11661, scales; (D–F) P. USNM 92320. Scale bars: 0.02 mm (A–C, E, F); 0.01 mm (D).
Figure 10 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 10. Colony of Tobagogorgia hardyi, gen. et sp. nov. off Bobby Island, 30 m, Tobago, Trinidad and Tobago, March 2006. Inset: complete colony.
Figure 6 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 6. SEM stereopairs of Muriceopsis sulphurea Donovan (USNM 5298), Brazil. (A) Detail from (C) of the warts from sclerites of the surface coenenchyme; (B–H) different forms from the sclerites of the surface. Scale bars: 0.01 mm (A); 0.1 mm (B–D, F, H); 0.02 mm (E, G).
Figure 4 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 4. SEM stereopairs and/or images of sclerites from the surface coenenchyme layer of species of gorgoniids with capstan-derived sclerites (Clade 2). (A) Lophogorgia hebes Verrill, stereopair (USNM); (B) Lophogorgia alba Duchassaing and Michelotti (USNM 57091); (C) Phycogorgia fucata (Valenciennes) (USNM 56885); (D) Eugorgia rubens Verrill (USNM 50180); (E) Pseudopterogorgia australiensis (Ridley) (USNM 80952); (F) Leptogorgia virgulata (Lamarck) (USNM 1007414); (G) Pacifigorgia stenobrochis (Horn) (Eastern Pacific, personal collection). Scale bars: 0.01 mm (A, C, F, G); 0.02 mm (B, D, E).
Figure 5 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 5. Photographs of gorgonian corals from gorgoniids with asymmetrical spiny sclerites (Clade 3) in their natural environment or dry preserved. (A) Muriceopsis flavida (Lamarck) (Caribbean Sea, Bocas del Toro, Panama´; 15 m); (B) M. bayeriana Sánchez (Caribbean Sea, Bocas del Toro, Panama´; 2 m); (C, D) Pinnigorgia platysoma (Nutting) (Northern Territory Museum, Darwin, Australia; C11674; C12123); (E) P. flava (Nutting) (C11661). (C–E) Courtesy: Phil Alderslade.
Figure 3 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 3. SEM stereopairs and/or images of sclerites from the surface coenenchyme layer of species of gorgoniids with scaphoids sclerites (Clade 1). (A) Pseudopterogorgia acerosa (Tobago), stereopair; (B) Gorgonia mariae Bayer, stereopair (USNM 1007505); (C) Olindogorgia macgravi (Bayer); (D) Pterogorgia anceps (personal collection); (E, F) Pterogorgia citrina (USNM 1007406). Scale bars: 0.01 mm (A, C, E, F); 0.003 mm (B); 0.04 mm (D).
Figure 1 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 1. Phylogenetic hypothesis (maximum likelihood estimated phylogram) of Atlantic gorgoniids, modified from Aguilar and Sánchez (2007a, Figure 4A). The ''Undescribed octocoral'' refers to the new genus and species described below. Above node letters: A, support corresponding to values.90 in 100 bootstrap maximum likelihood replicates, 1000 bootstrap values in maximum parsimony together with values over 0.9 posterior probabilities of Bayesian inference; B, support corresponding to values.90 in 100 bootstrap maximum likelihood replicates but lesser values for maximum parsimony or Bayesian inference (,70 or 0.70, respectively); C, support corresponding to values,70 in 100 bootstrap maximum likelihood replicates but higher values for maximum parsimony or Bayesian inference (,90 or 0.90, respectively). Character mapping: grey bars, gorgoniids with scaphoid sclerites (Clade 1); open bars-dotted, gorgoniids with capstan-derived sclerites (Clade 2); grid bars, gorgoniids with asymmetrical spiny sclerites (Clade 3); black bars, gorgoniids with long and spiny spindles (Clade 4). Scale in substitutions per site. *Pinnigorgia and Muriceopsis are also supported by a complete compensatory base change in their RNA secondary structure, a rare evolutionary event (see Aguilar and Sánchez 2007a).
Figure 2 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 2. Diverse species of gorgoniids. (A) Phyllogorgia dillatata (Brazil, USNM 5252); (B) Gorgonia mariae (Carrie Bow Cay, Belize); (C) G. ventalina (San Salvador, Bahamas); (D) Pacifigorgia elegans (Brazil, USNM 50953); (E) P. agassizi (Colombia, Invemar collection); (F) Pseudopterogorgia sp. (Carrie Bow Cay, Belize); (G) Pterogorgia anceps; (H) Leptogorgia stheno (Bocas del Toro, Panama´).
Figure 8 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 8. SEM stereopairs of Pinnigorgia platysoma (Nutting). (A–C) C12123; (D–F) C11674. Scale bars: 0.01 mm (A–C, E, F); 0.02 mm (D).
Figure 12 in A new genus of Atlantic octocorals (Octocorallia: Gorgoniidae): systematics of gorgoniids with asymmetric sclerites
Figure 12. Surface sclerites of several gorgonian corals. (A–D) Tobagorgia hardyi new species; (E, F) Filigorgia schoutedeni (Stiasny); (G) Leptogorgia virgulata Linnaeus. (A–F) SEM stereopairs. Scale bars: 0.02 mm.
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