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11 results for “scolecodonts”
Fig. 2 in Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India
Fig. 2. Simplified lithological log of the Takche Formation at the Pin River section with the position of samples and the distribution of scolecodont and chitinozoan taxa. Sampling log on the right: solid squares denote productive samples for microfossils, whereas white squares indicate samples barren for scolecodonts and chitinozoans.
Fig. 1. A in Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India
Fig. 1. A. Geographic location of the studied area within India. The state of Himachal Pradesh and an enlarged sketch of it with the Lahaul and Spiti district (red) and the Pin Valley (green). B. Geological map of the outcropping area within the Pin Valley in Spiti with the studied section south of Farka Muth indicated. The age of the lithostratigraphic units largely follows Bhargava and Bassi (1998): Haimanta Group (late Proterozoic to middle Cambrian), Sanugba Group including the Thango Formation (Ordovician) and the Tackche Formation (Upper Ordovician to lower Silurian), Kanawar Group (Lower Devonian to lower Permian) with the Lower Devonian Muth Formation at its base, Kuling Group (Permian), Lilang Group (Lower Triassic to Upper Jurassic). C. Photograph of the studied section including the regional lithostratigraphic subdivision to units P/1–P/17. D. Palaeogeographic reconstruction with the assumed position of the Pin River section during the Late Ordovician (redrawn from Scotese 2000).
Fig. 4 in Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India
Fig. 4. Photomicrographs of the eunicid polychaete Spitiprion khannai gen. et sp. nov. apparatus preserved on an acetic acid-etched rock surface, CGS PT159_1 (sample P/8/69) from the Katian, Upper Ordovician of the Pin River section (Pin River Valley, Spiti, Himalaya, India). A1, optical microscope photograph; A2, SEM photomicrograph; A3, 3D reconstruction based on images from X-ray micro-computed tomography. The affinity of the maxilla (orange) is yet unknown (could be the second maxilla but diagnostic features are missing). A4, sketch of the maxillary apparatus of the new species of eunicid polychaete Spitiprion khannai. The maxillae white) with dotted lines are assumed according to closely related species but have not been found yet. MI, first maxilla; MII, second maxilla; MIV, fourth maxilla; AL, attachment lamella; BP, basal plate. Scale bars 100 µm.
Text-fig. 2. The Prague Basin and localities of the documented scolecodont occurrences (map after Havlíček and Štorch 1990) 1. Kosov Quarry, 2. Pod lanovkou, 3. Koledník, 4. Liščí Quarry, 5. cut of the road from Loděnice to Bubovice, 6. Arethusina Gorge. in Revision Of Kettnerites Žebera, 1935 (Scolecodonta, Silurian Of The Barrandian Area, Czech Republic): Preliminary Results
Text-fig. 2. The Prague Basin and localities of the documented scolecodont occurrences (map after Havlíček and Štorch 1990) 1. Kosov Quarry, 2. Pod lanovkou, 3. Koledník, 4. Liščí Quarry, 5. cut of the road from Loděnice to Bubovice, 6. Arethusina Gorge.
Fig. 1. A in Early Devonian scolecodonts from Podolia, Ukraine
Fig. 1. A. General location of the study area. B. Locations of the sampled sections (triangles). Numbers of the sections after Nikiforova et al. (1972); in parenthesis numbers used by Drygant and Szaniawski (2012).
Fig. 7 in Early Devonian scolecodonts from Podolia, Ukraine
Fig. 7. SEM micrographs of selected elements of paulinitid scolecodonts and undetermined anterior elements from Lower Devonian of Podolia: Ivanye Horizon, section 58 (D, O), section 73 (M, N, K), section 76 (A–C, E, G–J, L); Chortkiv Horizon, section 70 (F). A–D. "Kettnerites"? spp. A, B. Left mandibles in dorsal view. A. ZPAL Sc.8/8.19, sample S.IZ.13. B. ZPAL Sc.8/11.14, sample S.Za.2. C, D. Right mandibles in dorsal view. C. ZPAL Sc.8/7.1, sample S.IZ.16. D. ZPAL Sc.8/10.6, sample S.Za.12. E. Family uncertain, gen. et sp. indet. A, ZPAL Sc.8/7.9, sample S.IZ.16, in lateral view. F. Family uncertain, gen. et sp. indet. B, ZPAL Sc.8/4.22, sample S.Zo.4, in lateral view. G. Family uncertain, gen. et sp. indet. C, ZPAL Sc.8/7.18, sample S.IZ.18, in lateral view. H, M–O. "Kettnerites" spp. left MIII. H. ZPAL Sc.8/11.5, sample S.I.Z.18, in dorsal (H 1) and left lateral (H 2) views. M. ZPAL Sc.8/6.6, sample S.Do.6, in right lateral (M 1) and dorsal (M 2) views. N. ZPAL Sc.8/6.7, sample S.Do.6, in left lateral (N 1) and dorsal (N 2) views. O. ZPAL Sc.8/11.13, sample S.Za.12, in left lateral (O 1) and dorsal (O 2) views. I–L. "Kettnerites"? spp. left and right MIV. I. ZPAL Sc.8/7.13, sample S.IZ.18, right element in ventral lateral view. J. ZPAL Sc.8/8.22, sample S.I.Z.13, right element in ventral lateral view. K. ZPAL Sc.8/6.15, sample S.Do.2, left element in dorsal lateral view. L. ZPAL Sc, 8/8.8, sample S.IZ.6, left element in ventral lateral view.
Fig. 4 in Early Devonian scolecodonts from Podolia, Ukraine
Fig. 4. SEM micrographs of mochtyellid scolecodonts from Podolia. A–C. Mochtyella sp. A, lower part of the Borshchiv Horizon, section 48, Lower Lochkovian, sample S.Kh.1. A. ZPAL Sc.8/2.1, right MI in dorsal (A 1), left lateral (A 2), and right lateral (A 3) views. B. ZPAL Sc.8/2.2, incomplete right MI in dorsal view. C. ZPAL Sc.8/2.3, incomplete left MI in dorsal view. D. Mochtyella? sp., anterior tooth; lower part of the Borshchiv Horizon, section 48, Lower Lochkovian, sample S.Kh.1, ZPAL Sc.8/2.21. E, F. Mochtyellidae gen. et sp. indet., undetermined elements MI, upper part of the Ivanye Horizon, section 76, Pragian. E. ZPAL Sc.8/11.5, sample S.IZ.13, incomplete right MI in left lateral view. F. ZPAL Sc.8/8.18, sample S.IZ.13, left MI in right lateral view.
Fig. 5 in Early Devonian scolecodonts from Podolia, Ukraine
Fig. 5. SEM micrographs of polychaetaspid scolecodonts from Lower Lochkovian of Podolia, lower part of Borshchiv Horizon, section 48, sample S.Kh.1. A–G. Polychaetaspis kozlowskii sp. nov. A. ZPAL Sc.8/2.6, holotype, right MI in dorsal view. B. ZPAL Sc.8/2.15, right MI in dorsal view. C. ZPAL Sc.8/2.14, incomplete right MI in dorsal (C 1) and ventral (C 2) views. D. ZPAL Sc.8/2.5, basal plate in dorsal (D 1) and right lateral (D 2) views. E. ZPAL Sc8/2.17, left MI in dorsal (E 1) and left lateral (E 2) views. F. ZPAL Sc.8/2.13, left MI in dorsal (F 1) and oblique ventral (F 2) views. G. ZPAL Sc.8/2.4, left MI in dorsal (G 1) and oblique left lateral (G 2) views. H. Polychaetaspis? sp., ZPAL Sc.8/2.20, left MIII? in dorsal (H 1) and right lateral (H 2) views. I–L. Polychaetaspis? spp. anterior plates (MIV). I. ZPAL Sc8/2.1, right MIV in dorsal (I 1) and dorsal lateral (I 2) views. J, K. Right MIV in ventral lateral view. J. ZPAL Sc8/2.12. K. ZPAL Sc.8/2.11. L. ZPAL Sc8/2.24, left MIV in ventral lateral view.
Fig. 3 in Early Devonian scolecodonts from Podolia, Ukraine
Fig. 3. Internal structure preserved on the weathered surface of the right MI of "Kettnerites" sp., ZPAL Sc.8/14.5, sample S.IZ.4 from Ivanye Horizon, Lower Pragian, Podolia.
Fig. 2 in Early Devonian scolecodonts from Podolia, Ukraine
Fig. 2. Stratigraphic ranges of the described scolecodonts. Section numbers as in Fig. 1.
Text-fig. 1. Graptolite biostratigraphy of the Silurian showing the up to present documented occurrences of scolecodonts in the Prague Basin. The graptolite zones are shown proportionally to the supposed relative time length (chart after Kříž 1992; Štorch 2001). in Revision Of Kettnerites Žebera, 1935 (Scolecodonta, Silurian Of The Barrandian Area, Czech Republic): Preliminary Results
Text-fig. 1. Graptolite biostratigraphy of the Silurian showing the up to present documented occurrences of scolecodonts in the Prague Basin. The graptolite zones are shown proportionally to the supposed relative time length (chart after Kříž 1992; Štorch 2001).
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