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875 results for “Brachiopod”
Fig. 5 in The new stem-group brachiopod Oymurania from the lower Cambrian of Siberia
Fig. 5. Stem group-brachiopod Oymurania gravestocki Ushatinskaya gen. et sp. nov., cyrtoconic (presumably ventral) valves, from the lower Cambrian Emyaksin Formation, Bol'shaya Kuonamka section 7, Siberia. A. SMNH X5285, sample 7/33; upper (A 1), oblique lateral (A 2), and apical (A 4) views; close-up of A 1 showing fine pores (A 3). B. SMNH X5286, sample 7/47.7; subapical (B 1), lateral (B 2), and upper (B 3) views. Scale bar 600 μm, except A 3, 15 μm, A , 300 μm.
Fig. 2 in The new stem-group brachiopod Oymurania from the lower Cambrian of Siberia
Fig. 2. Derivation of fossiliferous samples (arrows with numbers) from sections Bol'shaya Kuonamka, Oy-Muran, and Achchagyi-Kyyry-Taas. Asterisk indicates stratigraphic position of samples (AKT, AK21) from the top of Achchagyi-Kyyry-Taas section (not shown) with respect to the OyMuran and Bol'shaya Kuonamka sections. Bol'shaya Kuonamka section 7 scale in meters continues to the bottom of the section (see Kouchinsky et al. 2015: fig. 2).
Fig. 11 in Orthid brachiopods from the Middle Ordovician of the Central Iberian Zone, Spain
Fig. 11. Orthid brachiopod Sivorthis noctilio (Sharpe, 1849). A. MGM−6249−O, internal mould (A1) and latex cast of interior (A2) of ventral valve. B. Lectotype, NHM 82904, latex cast of exterior of dorsal valve. C. MGM−6273−O, internal mould (C1), latex cast of interior (C2) and latex cast of exterior (C3) of ventral valve. D. MGM−6317−O, internal mould (D1), latex cast of interior (D2) and latex cast of exterior (D3) of dorsal valve. E. MGM−6304−O, internal mould (E1), latex cast of interior (E2) and latex cast of exterior (E3) of dorsal valve. Scale bars 5 mm.
Fig. 8 in Orthid brachiopods from the Middle Ordovician of the Central Iberian Zone, Spain
Fig. 8. Orthid brachiopod Paralenorthis lolae Reyes−Abril and Villas sp. nov. A. Holotype, MGM−6121−O, internal mould (A1) and latex cast of interior (A2) of ventral valve. B. MGM−6133−O, latex cast of exterior of ventral valve. C. MGM−6129−O, internal mould (C1) and latex cast of interior (C2) of ventral valve. D. MGM−6135−O, latex cast of exterior of ventral valve. E. MGM−6143−O, internal mould (E1) latex cast of interior (E2) and latex cast of exterior (E3) of dorsal valve. F. MGM−6158−O, internal mould (F1), latex cast of interior (F2) and latex cast of exterior (F3) of dorsal valve. Scale bars 5 mm.
Fig. 5 in Orthid brachiopods from the Middle Ordovician of the Central Iberian Zone, Spain
Fig. 5. Orthid brachiopod Orthambonites sp. A. MGM−5999−O, internal mould (A1) and latex cast of interior (A2) of ventral valve. B. MGM−6008−O, latex cast of exterior of dorsal valve. C. MGM−6002−O, internal mould of ventral valve. D. MGM−6006−O, internal mould (D1) and latex cast of interior (D2) of dorsal valve. E. MGM−6012−O, internal mould (E1) and latex cast of interior (E2) of dorsal valve. F. MGM−6013−O, latex cast of exterior of dorsal valve. G. MGM−6011−O, internal mould (G1) and latex cast of interior (G2) of dorsal valve. H. MGM−6007−O, latex cast of exterior of dorsal valve. Scale bars 5 mm.
Fig. 2 in Orthid brachiopods from the Middle Ordovician of the Central Iberian Zone, Spain
Fig. 2. Generalised stratigraphical columns of the Middle Ordovician rocks in the southern Central Iberian Zone, representatives of the three main areas (A–C) represented on Fig. 1, to show the vertical distribution of the studied brachiopod taxa. The left−hand column indicates the equivalence between the global chronostratigraphy and the north−Gondwanan regional scheme. Abbreviations: AQ, Armorican Quartzite; GF, Guindo Formation; Fe, thin oolithic ironstone bed. Note that the stratigraphic range of the graptolite biozones are directly annotated on the left side of each column.
Fig. 1 in Orthid brachiopods from the Middle Ordovician of the Central Iberian Zone, Spain
Fig. 1. Map of the main Ordovician–Silurian outcrops of Iberian Massif, with locations of the studied fossiliferous localities, including the Portuguese localities of Valongo and Arouca. Abbreviations: AC, Almodóvar del Campo; AD, Almuradiel; AQ, Aldeaquemada; CC, Calzada de Calatrava; CHI, Chillón; NE, Navas de Estena; SP, San Pablo de Los Montes; VM, Viso del Marqués; VPA, Ventas con Peña Aguilera. A, B, C are the representative areas of lithostratigraphic sections detailed in Fig. 2.
Fig. 6 in Orthid brachiopods from the Middle Ordovician of the Central Iberian Zone, Spain
Fig. 6. Orthid brachiopod Paralenorthis alata (J. de C. Sowerby in Murchison, 1839). A. MGM−6021−O internal mould (A1), latex cast of interior (A2) and latex cast of exterior (A3) of ventral valve. B. MGM−6030−O, internal mould (B1) and latex cast of interior (B2) of ventral valve. C. MGM−6038−O, latex cast of exterior of ventral valve. D. MGM−6037−O, internal mould of ventral valve. E. MGM−6048−O internal mould (E1) and latex cast of interior (E2) of dorsal valve. F. MGM−6027−O, latex cast of ventral exterior (F1), latex cast of dorsal exterior (F2), and detail of the latter (F3) of a shell with conjoined valves. G. MGM−6042−O, internal mould (G1), latex cast of interior (G2) and latex cast of exterior (G3) of dorsal valve. Scale bars 5 mm.
Fig. 2 in Tubular shell infestations in some Mississippian spirilophous brachiopods
Fig. 2. Diagrammatical reconstruction of the dorsal valve of spiriferide brachiopod Tylothyris laminosa with part of the right spiralium removed to show hypothetical life position of the infester Haplorygma dorsalis ichnogen. et sp. nov. Grey arrow indicates presumable inhalant, open arrows exhalant currents.
Fig. 2 in First colour-patterned strophomenide brachiopod from the earliest Devonian of Podolia, Ukraine
Fig. 2. Diagram showing variability of colour pattern in 40 ventral valves of Plectodonta sp. from the Khudykivtsi Member, Early Devonian, Dnistrove, Podolia, Ukraine.
Fig. 3 in First colour-patterned strophomenide brachiopod from the earliest Devonian of Podolia, Ukraine
Fig. 3. Diagram showing examples of different types of colour pattern in some articulate brachiopods. A. Spotted pattern in strophomenide Plectodonta sp. from the lowermost Devonian of Podolia, Ukraine (this paper). B. Concentric banding and spots in productide Chonetinella jeffordsi Stevens, 1962 from the Middle Pennsylvanian of Colorado, USA (based on Stevens 1965: text−fig. 1). C. Concentric banding in orthotetide Orthotetes kaskaskiensis (McChesney, 1860) from the Mississippian of Illinois, USA (based on Nitecki and Sadlick 1968). D. Spots and irregular banding in rhynchonellide?Solidipontirostrum radwanskii Biernat, 1984 from the Middle Devonian of Poland (Biernat 1984). E. Radial banding in rhynchonellide Cassidirostrum radiatum Johnson, 1975 from the late Early Devonian, USA (based on Johnson 1975: pl. 8: 23). F. Radial banding in athyridide Athyris vittata Hall, 1860 from the Middle Devonian of Michigan, USA (based on Blodgett et al. 1988: fig. 4). G. Radial banding in athyridide Merista herculaea (Barrande, 1911) from the Pragian Stage of Bohemia (based on Křiž and Lukeš 1974: pl. 1: 8). H. Spotted pattern in terebratulide Cranaena morsii Greger, 1908 from the Middle Devonian of Missouri (based on Křiž and Lukeš 1974: pl. 2: 14). I. Radial banding in terebratulide Cranaena thomasi Stainbrook, 1941 from the Middle Devonian of Iowa (based on Křiž and Lukeš 1974: pl. 2: 15). J. Concentric bands in terebratulide Cranaena casei Foerste, 1930 from the Middle Devonian of Michigan (based on Cloud 1942: pl. 24: 32). K. Irregular patches in the Recent terebratulide Shimodaia pterygiota MacKinnon, Saito, and Endo, 1997 from Japan Sea (based on MacKinnon and Lee 2006: fig. 1467: 5a). Not to scale.
Fig. 1 in First colour-patterned strophomenide brachiopod from the earliest Devonian of Podolia, Ukraine
Fig. 1. Shell colour pattern in a strophomenide brachiopod Plectodonta sp. from the Khudykivtsi Member, Early Devonian, Dnistrove, Podolia, Ukraine. A, B, E, F. External view of four uncoated ventral valves, ZPAL Bp 56/90–93. C. External view of uncoated (C1) and coated with ammonium chloride (C2) ventral valve, ZPAL Bp 56/94. D. External view of uncoated (D1) and coated with ammonium chloride (D2) dorsal valve, ZPAL Bp 56/95; note the absence of colour pattern on the valve. G. Rock slab showing exterior of two ventral valves (white arrows, ZPAL Bp 56/96 and 97, enlarged on E and F) and one exterior of dorsal valve (black arrow; ZPAL Bp 56/98); note that both ventral valves show evident colour pattern, whereas dorsal valve is without discernible pattern. Specimens in A, B, C1, D1, E–G immersed in water before photographing. Scale bars 1 mm.
Fig. 5 in Soft-part preservation in a linguliform brachiopod from the lower Cambrian Wulongqing Formation (Guanshan Fauna) of Yunnan, South China
Fig. 5. Reconstruction of Acanthotretella decaius sp. nov. based on GKG CA−007,GKG CA−008, GKG CA−002B, showing disposition of lophophore, small visceral cavity and location of measurements indicated in Table 1.
Fig. 4 in Soft-part preservation in a linguliform brachiopod from the lower Cambrian Wulongqing Formation (Guanshan Fauna) of Yunnan, South China
Fig. 4. Sketch drawings of the linguliform brachiopod Acanthotretella decaius sp. nov. illustrated in Fig. 2 and 3. A. Sketch of Fig. 2C1 (GKG CA−008B). B. Sketch of Fig. 2 E(GKG CA−002B). C. Sketch of Fig. 3C1(GKG CA−007B). D. Sketch of Fig. 3D1(GKG CA−013(2)). Scale bars 5 mm.
Fig. 1. A in Soft-part preservation in a linguliform brachiopod from the lower Cambrian Wulongqing Formation (Guanshan Fauna) of Yunnan, South China
Fig. 1. A. Map showing the locality (star) where the brachiopod Acanthotretella decaius sp. nov. was collected. B. Stratigraphical correlation of the muddy deposits yielding the Guanshan fanua including A. decaius sp. nov. in Gaoloufang section near Guangwei village, Kunming, southern China.
Fig. 3 in Soft-part preservation in a linguliform brachiopod from the lower Cambrian Wulongqing Formation (Guanshan Fauna) of Yunnan, South China
Fig. 3. Linguliform brachiopod Acanthotretella decaius sp. nov. from the early Cambrian Guanshan fauna, showing the proximal pedicles (tailed arrows) and gut remains (simple arrows), Yunnan, China. A. GKG CA−014, a muddy slab with two individuals preserved together. B–D. Photographs showing the U−shaped digestive tracts preserved as tubular imprints (simple arrows) with some relief. B. GKG CA−011B. C. GKG CA−007B. D. GKG CA−013(2). General view (C1, D1), close−up (C2, D2) of tubular relief of guts. See Fig. 4 for interpretations of C1 and D1.
Fig. 2 in Soft-part preservation in a linguliform brachiopod from the lower Cambrian Wulongqing Formation (Guanshan Fauna) of Yunnan, South China
Fig. 2. Linguliform brachiopod Acanthotretella decaius sp. nov. from the Wulongqing Formation (Palaeolenus Zone), lower Cambrian (recently Series 2, Stage 4), China. A. Holotype, GKG CA−007 in general view (A1); posterior details of the shell valves (A2), showing the small body cavity posteromedially placed, the elongate subtriangular pseudointerarea and the proximate pedicle; details of the gentle S−shaped portion of pedicle in A1 (A3); close−up view of the pedicle annulations in A1 (A4). B. GKG CA−008A, a flattened specimen anterolaterally compressed in general view (B1), showing the concentric growth +
Fig. 5 in A monospecific assemblage of terebratulide brachiopods in the Upper Cretaceous seep deposits of Omagari, Hokkaido, Japan
Fig. 5. Terebratulide brachiopod Eucalathis methanophila Bitner sp. nov., Campanian, Omagari, Japan. A. UMUT MB30197, transverse section of ventral valve, visible fused fibres (A1), visible boundary of primary and secondary layers (A2). B. UMUT MB30203, ventral valve, transverse sections of the whole shell (B1), visible boundary between primary and secondary layers, and punctae (B2). All SEM.
Fig. 4 in A monospecific assemblage of terebratulide brachiopods in the Upper Cretaceous seep deposits of Omagari, Hokkaido, Japan
Fig. 4. Recontruction of internal structures of Eucalathis methanophila Bitner sp. nov. based on transverse serial sections (Fig. 3) and 3D digital reconstruction (see at http://app.pan.pl/SOM/app55-Kaim_etal_SOM.pdf). Drawing by Ewa Widłak−Kaim.
Fig. 3 in A monospecific assemblage of terebratulide brachiopods in the Upper Cretaceous seep deposits of Omagari, Hokkaido, Japan
Fig. 3. Transverse serial sections of terebratulide brachiopod Eucalathis methanophila Bitner sp. nov. through specimen UMUT MB30203, Campanian, Japan. Original dimensions of the specimens: L = 4.9 mm, W = 4.4. mm, T = 2.0 mm. Numbers indicate distance in mm from the tip of the ventral umbo.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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