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4 results for “pollen containment”
Text-fig. 53. Scanning electron microscope (SEM) images of tricolpate pollen of Nicholsia brevicolpites gen. et sp. nov. from a coprolite containing several kinds of pollen; Torres Vedras locality, Portugal. a) Detail of the coprolite that yielded the tricolpate pollen in this Text-figure showing several different kinds of pollen grains; b–d) Tricolpate pollen grains in polar (b) and equatorial (c, d) views showing colpi, coarsely granular aperture membrane and foveolate tectum. Specimen, TV44-S137906-03 (holotype; a–d). Scale bars 30 Μm (a), 6 Μm (b–d). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 53. Scanning electron microscope (SEM) images of tricolpate pollen of Nicholsia brevicolpites gen. et sp. nov. from a coprolite containing several kinds of pollen; Torres Vedras locality, Portugal. a) Detail of the coprolite that yielded the tricolpate pollen in this Text-figure showing several different kinds of pollen grains; b–d) Tricolpate pollen grains in polar (b) and equatorial (c, d) views showing colpi, coarsely granular aperture membrane and foveolate tectum. Specimen, TV44-S137906-03 (holotype; a–d). Scale bars 30 Μm (a), 6 Μm (b–d).
Text-fig. 41. Scanning electron microscope (SEM) images of "Pollen clump with tricolpate pollen sp. 5"; Catefica locality, Portugal. a) Pollen clump, probably coprolite but containing one kind of pollen; b, c) Pollen grains from pollen clump in oblique equatorial view (b) and polar view (c) showing the three apertures with a distinct aperture margin and the coarse reticulum; d) Detail of wall of a broken pollen grain showing long straight columellae and a thin foot layer. Specimen, Catefica 50-S115858 (a–d). Scale bars = 600 Μm (a), 6 Μm (b, c), 1.5 Μm (d). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 41. Scanning electron microscope (SEM) images of "Pollen clump with tricolpate pollen sp. 5"; Catefica locality, Portugal. a) Pollen clump, probably coprolite but containing one kind of pollen; b, c) Pollen grains from pollen clump in oblique equatorial view (b) and polar view (c) showing the three apertures with a distinct aperture margin and the coarse reticulum; d) Detail of wall of a broken pollen grain showing long straight columellae and a thin foot layer. Specimen, Catefica 50-S115858 (a–d). Scale bars = 600 Μm (a), 6 Μm (b, c), 1.5 Μm (d).
Figure 2. - Nesting architecture of Xylocopanasalis; Dissected nests of Xylocopanasalis revealing the nest structure inside the bamboo culm and its residents. Measurements of the nest parameters are shown in Table 1. The diameters of the nests (excluding the nest thickness) were measured at the nest entrance, followed by the vestibulum (antechamber) length, cell length, and the inner most cell length, respectively (2a). Cells containing larvae with pollen masses and their feces were collected and weighted (2b).
Figure 2. - Nesting architecture of Xylocopanasalis; Dissected nests of Xylocopanasalis revealing the nest structure inside the bamboo culm and its residents. Measurements of the nest parameters are shown in Table 1. The diameters of the nests (excluding the nest thickness) were measured at the nest entrance, followed by the vestibulum (antechamber) length, cell length, and the inner most cell length, respectively (2a). Cells containing larvae with pollen masses and their feces were collected and weighted (2b).
Text-fig. 39. Scanning electron microscope (SEM) images of "Pollen clump with tricolpate pollen sp. 3"; Catefica locality, Portugal. a) Pollen clump, probably an anther fragment, containing one kind of pollen; b, d, e) Pollen grains from stamen fragment in polar (b, d) and equatorial (e) views showing the long colpi with coarsely verrucate aperture membranes; note the semitectate-reticulate tectum in the mesocolpium regions and foveolate-punctate tectum in the polar regions and along the aperture margins; c) Detail of pollen wall showing smooth muri and short, densely-spaced columellae. Specimen, Catefica 49-S107785 (a–e). Scale bars = 600 Μm (a), 6 Μm (b, d, e), 1.5 Μm (c). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 39. Scanning electron microscope (SEM) images of "Pollen clump with tricolpate pollen sp. 3"; Catefica locality, Portugal. a) Pollen clump, probably an anther fragment, containing one kind of pollen; b, d, e) Pollen grains from stamen fragment in polar (b, d) and equatorial (e) views showing the long colpi with coarsely verrucate aperture membranes; note the semitectate-reticulate tectum in the mesocolpium regions and foveolate-punctate tectum in the polar regions and along the aperture margins; c) Detail of pollen wall showing smooth muri and short, densely-spaced columellae. Specimen, Catefica 49-S107785 (a–e). Scale bars = 600 Μm (a), 6 Μm (b, d, e), 1.5 Μm (c).
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