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666 results for “Wales”
FIGURE 5 in Teganium (Porifera, Hexactinellida) from the Middle Ordovician Castle Bank fauna of Avalonia (Wales, UK)
FIGURE 5. Cut-away reconstruction of Teganium avalonensis sp. nov., with detail of wall structure on the right; dermal/hypodermal skeleton in lower part, and choanosomal layer with exhalent canals in upper part.
FIGURE 3 in Teganium (Porifera, Hexactinellida) from the Middle Ordovician Castle Bank fauna of Avalonia (Wales, UK)
FIGURE 3. Teganium avalonensis sp. nov. A, paratype NMW.2021.3G.74; apical part with marginalia, imaged with directed light (from right) to highlight texture of body wall; B, paratype NMW.2021.3G.98, with low-angle light to highlight diagnostic texture of body wall (boxed area enlarged inset); C–F, paratype NMW.2021.3G.82, partial specimen with the boxes in C indicating positions of D, E and F; D, lateral detail to show reticulate skeletal grid (plane-polarised light); E, detail showing scale of minute triaxon spicules within the same area; centres of several spicules arrowed; F, detail of central part of specimen in cross-polarised light (contrast enhanced) to highlight the small circular cavities within choanosomal (internal) layer of body wall. Scale bars: A, B, D, F equal 1 mm; C equals 5 mm; E equals 0.1 mm.
FIGURE 2 in Teganium (Porifera, Hexactinellida) from the Middle Ordovician Castle Bank fauna of Avalonia (Wales, UK)
FIGURE 2. Teganium avalonensis sp. nov., from the Middle Ordovician Castle Bank Biota, Wales. A–B: paratype slab NMW.2021.3G.72, with pair of sponges in A, plane-polarised light, and B, cross-polarised; C, E, holotype NMW.2021.3G.71: C, overall view, with box indicating area enlarged in E; E, detail of basal region showing projecting basalia; D, paratype NMW.2021.3G.73, overall view. Scale bars: A–D equal 5 mm; E equals 1 mm.
FIGURE 4 in Teganium (Porifera, Hexactinellida) from the Middle Ordovician Castle Bank fauna of Avalonia (Wales, UK)
FIGURE 4. Paratypes of Teganium avalonensis sp. nov. A, NMW.2021.3G.77; B, NMW.2021.3G.98 in cross-polarised light (boxed area enlarged in Figure 3B); C, NMW.2021.3G.78 with pair of specimens, the right-hand one with marginalia; D, NMW.2021.3G.79; E, NMW.2021.3G.81 with multiple specimens, in cross-polarised light; F, NMW.2021.3G.80. Scale bars equal 1 mm.
FIGURE 1 in Teganium (Porifera, Hexactinellida) from the Middle Ordovician Castle Bank fauna of Avalonia (Wales, UK)
FIGURE 1. Locality map (left) and local stratigraphy of the Castle Bank locality, showing occurrence of Teganium avalonensis sp. nov. within the Castle Bank sequence (mainly siltstone, with shading representing colour of sediment; v: volcanic ash layers). Exact locality information is deposited with the specimens.
Fig. 6 in First post-Cambrian records of the reticulosan sponges Valospongia and Hintzespongia from the late Tremadocian of North Wales
Fig. 6. The hexactine-bearing sponge Hintzespongia? sp., NIGP154638, Dol-cyn-Afon Formation, upper Tremadocian, Lower Ordovician, Ceunant-ygarreg-ddu stream section, Arenig Fawr, North Wales, UK. A. Overall view of specimen showing several regions with exposed spicules, each revealing skeletal layers interpreted as having originally been dominantly diagonal (d), sub-orthogonal (o) or both (d, o), and with example of possible inner layer parietal gap (pg). B. Detail of central part of specimen, showing both diagonal and sub-orthogonal spicule arrays. C. Camera lucida drawing of region shown in B, with sub-orthogonal series stippled. Scale bars 5 mm. All photographs taken under water.
Fig. 3 in First post-Cambrian records of the reticulosan sponges Valospongia and Hintzespongia from the late Tremadocian of North Wales
Fig. 3. Examples of undescribed sponges from the Dol-cyn-Afon Formation (early Migneintian, upper Tremadocian, Lower Ordovician), Arenig Fawr. A. NIGP 154639, indeterminate choiid, disarticulating, from Ceunant-ygarreg-ddu. B. NIGP 154640, three specimens of a Hazelia-like sponge, from Amnodd Wen. C. NIGP154641, undescribed reticulosan from Amnodd Wen. Scale bars 5 mm. All photographs taken under water.
Fig. 2 in First post-Cambrian records of the reticulosan sponges Valospongia and Hintzespongia from the late Tremadocian of North Wales
Fig. 2. Locality map showing the positions of the study sites within the local area, west of Arenig Fawr. Ceunant-y-garreg-ddu location marks the base of an extensive section through the upper part of the formation. Inset map shows the position of the localities within the UK.
Fig. 5 in First post-Cambrian records of the reticulosan sponges Valospongia and Hintzespongia from the late Tremadocian of North Wales
Fig. 5. The hexactine-bearing sponge Valospongia bufo sp. nov. Cut-away reconstruction, showing (left to right) outer surface including reticulate covering of mounds; outer layer with apices of mounds cut off, as seen in the majority of specimens due to partial compression of the skeletons; inner layer (or perhaps two layers superimposed) with combination of approximately diagonal and orthogonal elements of the skeletal mesh.
Fig. 2. A–E. Specimen NMW95.61G.1 in A mysterious giant ichthyosaur from the lowermost Jurassic of Wales
Fig. 2. A–E. Specimen NMW95.61G.1, radius of possible shastasaurid ichtyosaur from the Lower Jurassic of Penarth, South Wales, in proximal (A), posterior (B), ventral or dorsal (C, D), and distal (E) views. F. Regression graph shows the relation between preflexural length versus radius height (both in cm) in selected ichthyosaurian specimens (see Supplementary Online Material available at http://app.pan.pl/SOM/app60-Martin_etal_SOM.pdf). The stippled line corresponds to NMW95.61G.1. The outline is based on Kosch (1990) reconstruction of Shonisaurus popularis.
Fig. 1. A in A mysterious giant ichthyosaur from the lowermost Jurassic of Wales
Fig. 1. A. Lithostratigraphy, biostratigraphy, and carbon-isotope stratigraphy of key Triassic–Jurassic sections illustrating the likely age of the specimen NMW95.61G.1 from Penarth, south Wales, UK. Organic and inorganic carbon isotope data of Penarth-Lavernock Point from Suan et al. (2012) and Korte et al. (2009); organic carbon isotope data of St. Audrie's Bay and Kuhjoch from Hesselbo et al. (2002) and Ruhl et al. (2009). The specimen was deposited several kyr after the end-Triassic mass extinction (initial neg. CIE = initial negative carbon-isotope excursion). Abbreviations: CM, Cotham Member; LM, Langport Member. B. Close-up photograph of the bivalve Palaeonucula navis (Piette, 1858) preserved in the embedding matrix of specimen NMW95.61G.1.
FIGURE 3 in A new Late Devonian isoetalean lycopsid from New South Wales, Australia: Cymastrobus irvingii gen. et sp. nov.
FIGURE 3. Cymastrobus irvingii gen. et sp. nov. NMVP 161998. Virtual sections, X-Ray synchrotron microtomography. 1-5, Proximal-distal series of longitudinal sections through a sporophyll-sporangium unit; note the heel (H) in 1, keel (K) in 2 and 3, microsporangium (mS) and longitudinal pad of tissue (P) in 4 and 5, vascular strand (VS) in 5.
FIGURE 2 in A new Late Devonian isoetalean lycopsid from New South Wales, Australia: Cymastrobus irvingii gen. et sp. nov.
FIGURE 2. Cymastrobus irvingii gen. et sp. nov. NMVP 161998. Virtual sections, X-Ray synchrotron microtomography. 1, Cone in tangential section. 2, Cone in radial section; note the proximal position of the megasporangia. 3, Cone axis in transverse section. 4, Outer portion of the cone in tangential section showing four sporophyll-sporangium units in longitudinal row. 5-8, Inwards to outwards series of tangential sections through the cone showing the progressive changes in size of the sporophyll pedicels (P) and the sporangia (S).
FIGURE 5 in A new Late Devonian isoetalean lycopsid from New South Wales, Australia: Cymastrobus irvingii gen. et sp. nov.
FIGURE 5. Cymastrobus irvingii gen. et sp. nov. NMVP 161998. 1, Cast of a megaspore central body showing numerous small circular pores arranged in several rows around the trilete mark. 2, Detail of previous view. 3, Casts of microspore central bodies; the largest one shows three pores between the rays of the trilete mark (arrows).
FIGURE 1 in A new Late Devonian isoetalean lycopsid from New South Wales, Australia: Cymastrobus irvingii gen. et sp. nov.
FIGURE 1. Cymastrobus irvingii gen. et sp. nov. NMVP 161998. 1, General view of the cone; cone axis at arrow. 2, Distal part of cone axis in transverse section. 3, Detail showing the stele (St) and five sporophyll traces at arrows. 4, Detail showing the wavy outline of the xylem ring, presumed location of the phloem (Ph), inner cortical cells (IC) and three sporophyll traces at arrows. 5, Detail showing the emission of a sporophyll trace from a groove of the primary xylem ring.
FIGURE 4 in A new Late Devonian isoetalean lycopsid from New South Wales, Australia: Cymastrobus irvingii gen. et sp. nov.
FIGURE 4. Cymastrobus irvingii gen. et sp. nov. NMVP 161998. Virtual reconstructions and volume rendering visualization of chosen anatomical units within the X-Ray synchrotron microtomography scan. 1-2, General view of the cone showing two reconstructed sporophyll-sporangium units, the proximal one producing megaspores, the distal one microspores. 3, Reconstructed sporophyll showing the enlarging pedicel and dissected lamina. 4-5, Two reconstructed sporophyll-microsporangium units in profile view. 6-7, Two reconstructed sporophyll-megasporangium units in profile view. VS: vascular strand.
Linked collectors and determiners for: New South Wales Plant Pathology and Mycology Herbarium (DAR) AVH data.
Natural history specimen data linked to collectors and determiners held within, "New South Wales Plant Pathology and Mycology Herbarium (DAR) AVH data". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/685cff6d-e439-4552-980c-5c73d647d1bf">https://bionomia.net/dataset/685cff6d-e439-4552-980c-5c73d647d1bf</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/685cff6d-e439-4552-980c-5c73d647d1bf">https://gbif.org/dataset/685cff6d-e439-4552-980c-5c73d647d1bf</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: A new species of Dinotoperla Tillyard, 1921 from the Shoalhaven Catchment, New South Wales, Australia (Plecoptera: Gripopterygidae).
Natural history specimen data linked to collectors and determiners held within, "A new species of Dinotoperla Tillyard, 1921 from the Shoalhaven Catchment, New South Wales, Australia (Plecoptera: Gripopterygidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/7070edc8-3ef3-4cc8-8bc4-03f9735e23dc">https://bionomia.net/dataset/7070edc8-3ef3-4cc8-8bc4-03f9735e23dc</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/7070edc8-3ef3-4cc8-8bc4-03f9735e23dc">https://gbif.org/dataset/7070edc8-3ef3-4cc8-8bc4-03f9735e23dc</a>. Formatted as a Frictionless Data package.
Figure 6. Bayesian 90 in A survey of spiders (Arachnida: Araneae) of Prince of Wales Island, Alaska; combining morphological and DNA barcode identification techniques
Figure 6. Bayesian 90% majority rule consensus phylogram for the species Tachygyna ursina (Bishop and Crosby) and outgroup using a three partitioned model (GTR+I+G for each codon position) of a 669 bp region of the COI gene. Survey specimens are highlighted. Posterior probabilities are recorded above branches. Branch lengths from the Bayesian analysis followed by the branch lengths from the Neighbor Joining analysis, where applicable, are recorded below branches.
Figure 4. Bayesian 70 in A survey of spiders (Arachnida: Araneae) of Prince of Wales Island, Alaska; combining morphological and DNA barcode identification techniques
Figure 4. Bayesian 70% majority rule consensus phylogram for the species Parazygiella dispar (Kulczynski) and outgroup using a three partitioned model (GTR+I+G for each codon position) of a 669 bp region of the COI gene. Survey specimens are highlighted. Posterior probabilities are recorded above branches. Branch lengths from the Bayesian analysis followed by the branch lengths from the Neighbor Joining analysis, where applicable, are recorded below branches.
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