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32 results for “Nassellaria”
FIG. 9. — A-I, Tetrarchiplagia ramosa n in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 9. — A-I, Tetrarchiplagia ramosa n. sp.; A, holotype, right lateral view; B-I, paratypes; B, C, left lateral and apical views of the same specimen; D, E, left lateral view and detail of apical spine of the same specimen; F, right lateral view of a specimen showing a smaller angle between D and L; G, oblique ventral view; H, dorsal view of a small specimen with strongly curved D and L; I, left lateral view, detail of the central part showing the slender ventral spine and Ll broken off; J, Tetrarchiplagia tithoniana n. sp., paratype, apical view. Abbreviations: D, dorsal spine; L, primary lateral spine; Ll, left primary lateral spine. Scale bars: A-D, F-H, J, 100 µm; E, I, 30 µm.
FIG. 30. — A, B, Napora timida n in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 30. — A, B, Napora timida n. sp.; A, holotype, view from Lr; B, paratype, view from Lr; C, Poculinapora tripartita n. gen., n. sp., holotype, view from Lr; D, E, Poculinapora marsupialia n. gen., n. sp; D, holotype, view from Ll; E, paratype, dorsal view; F-I, Poculinapora poculigera n. gen., n. sp.; F, I, holotype, view from Lr and detail of apical horn; G, H, paratype, view from Lr and detail of apical horn in subapical view. Abbreviations: Ll, left primary lateral spine; Lr, right primary lateral spine. Scale bars: A-G, 100 µm; H, 30 µm; I, 10 µm.
FIG. 8. — Arachnoplecta architectonica n. gen., n in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 8. — Arachnoplecta architectonica n. gen., n. sp., holotype; A, basal view (dorsal spine is directed towards the base of the figure and ventral spine towards the upper part); B, dorsal view (apical spine is directed towards the upper part of the figure); C, detail of A showing the median bar, the two primary lateral spines, and the ventral spine; D, detail of the left primary lateral spine with bars aligned to the central rod. Scale bars: A, B, 100 µm; C, D, 30 µm.
FIG. 6 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 6. — Stratigraphic range of monocyrtid and dicyrtid radiolarian families and genera described in the present paper. Stratigraphic intervals without evidence in dotted lines, early Tithonian occurences from the Solnhofen area indicated by squares.
FIG. 7 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 7. — Structure of the skeleton of Arachnoplecta architectonica n. gen., n. sp. Abbreviations: A, apical spine; ADl, left junction area among one planiform structure of the apical spine, one of the dorsal spine, and one of the left primary spine; ADr, right junction area among one planiform structure of the apical spine, one of the dorsal spine, and one of the right primary lateral spine; D, dorsal spine; Lr, right primary lateral spine; Ll, left primary lateral spine; MB, median bar; V, ventral spine.
FIG. 5 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 5. — Quantitative distribution of monocyrtid and dicyrtid radiolarian genera in sample Mue 22, based on 300 specimens.
FIG. 4 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 4. — Distribution of different species of Napora Pessagno, 1977 in sections. Note the common occurrence of the robust Napora pacifica Kiessling, 1999 and the high diversity in Mue 22. For legend, refer to Fig. 2.
FIG. 2 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 2. — Distribution of monocyrtid and dicyrtid nassellarian genera in sections. Note the contrast between the wide distribution of low diverse associations with Saitoum Pessagno, 1977 and Napora Pessagno, 1977 compared to the high diversity in sample Mue22.
FIG. 3 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 3. — Distribution of different species of Saitoum Pessagno, 1977 in sections. Note the ubiquitous occurrence of the very robust species Saitoum labeosum n. sp. and the high diversity in sample Mue 22. For legend, refer to Fig. 2.
FIG. 1 in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 1. — Locality map with sections Mühlheim, Schaudiberg old quarry (Mue), Mühlheim, Schaudiberg new quarry (SB), Horstberg, southern quarry (Hob 1-31), and Horstberg, northern quarry (Hob 32-57).
FIG. 13. — Turriseiffelus yaoi n. gen., n in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 13. — Turriseiffelus yaoi n. gen., n. sp., holotype, dorsal view. Scale bar: 50 µm.
FIG. 14. — A-D, Saitoum ambiguum n in Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany)
FIG. 14. — A-D, Saitoum ambiguum n. sp.; A, B, holotype, latero-ventral and basal views respectively; C, D, paratype, dorsal and basal views showing the two secondary lateral spines extended outside wall; E-G, Saitoum bicorniculatum n. sp.; E, F, holotype, right lateral and basal views showing the long ventral spine and the dorsally displaced apical horn; G, paratype, left lateral view; H-J, Saitoum curtipes n. sp.; H, holotype, ventral view; I, J, paratypes; I, specimen with remnants of velum; J, basal view; K-M, Saitoum(?) delicatum n. sp.; K, holotype, ventral view showing a constriction along arch AV; L, M, paratypes; L, basal view showing remnants of velum; M, right lateral view showing a constriction along arch Al. Abbreviations: A, apical spine; l, secondary lateral spine; V, ventral spine. Scale bars: 30 µm.
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