Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
13
datasets available to search
ShareScore release 0.9.0
Dataset results
13 results for “Papposphaera”
Figs 23–26 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 23–26. Papposphaera sagittifera HOL (TEM / Figs 23–25; SEM / Fig. 26) from the Arctic (NEW / Figs 23–25; Svalbard / Fig. 26). 23–25 – complete cells showing flagella, haptonema (Fig. 25, arrow) and large numbers of tower-shaped holococcoliths projecting in all directions; 26 – high magnification of the hexagonal crystallite plates.
Fig. 3 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Fig. 3. Interpretational drawings of coccolith structure within species of Papposphaera. Intraspecific variation is shown where relevant. A – P. sagittifera; B – P. sagittifera cfr.; C – P. sarion; D – P. arctica; E – P. iugifera; F – P. heldalii; a – body coccolith central area calcification; b – calyx design; c – calicate coccolith central area calcification; d – holococcolith contour (flagellar pole coccolith); e – holococcolith contour (body coccolith). Notice the inclusion of schematic drawings of a rosette wing from each of the P. sagittifera types of calyces.
Figs 27–32 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 27–32. Papposphaera sagittifera cfr. HET. TEM whole mounts from the Antarctic (EPOS samples). 27 – complete cell with flagella and a curled up haptonema; 28 – high magnification of calyces (four-winged rosettes) from Fig. 27; 29 – high magnification of calyx from Fig. 30; 30 – complete cell with flagella and a curled up haptonema; 31 – detail of central area calcification from the cell in Fig. 30; 32 – details of rim structure from the cell shown in Fig. 30.
Fig. 8 in Papposphaera heldalii sp. nov. (Haptophyta, Papposphaeraceae) from Svalbard
Fig. 8. Schematic drawings of coccolith structures in species of Papposphaera (not drawn to scale). a – body coccoliths; b – calyx design; c – coccoliths with central processes; A – P. sagittifera; B – P. sarion; C – P. arctica; D – P. iugifera; E – P. heldalii. Notice that alternative shapes are included for some species (A/a, B/a, D/a) and that the P. sarion design for a coccolith with a central process (B/c) is potentially as variable as B/a.
Figs 2–7 in Papposphaera heldalii sp. nov. (Haptophyta, Papposphaeraceae) from Svalbard
Figs 2–7. Papposphaera heldalii SEM images of cells from the Svalbard region collected during Jan. 2014 (Figs 4–5) and March 2014 (Figs 2–3, 6–7). 2 – cluster of coccoliths shown at high magnification. Notice in particular details of the calyx and coccolith rim calcification. The arrows point to extensions from the pentagonal elements separating the rod-like elements. See also ruptures in the organic base plates of body coccoliths; 3 – whole cell (type specimen) showing the general disposition of types of coccoliths within the coccosphere. A single coccolith (enlarged in Fig. 6) shows the central area calcification of a calicate coccolith; 4 – whole cell. Notice the difference in length of the central process among the two clusters of coccoliths carrying these. See also the conspicuous size differences between neighboring body coccoliths; 5 – body coccoliths showing large individual size differences; 6 – detail of central area calcification in a coccolith that carries a central process (broken away here); 7 – detail of coccolith rim from coccoliths that carry a central process. The arrows point to extensions from the pentagonal elements separating the rod-like elements.
Figs 10–16 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 10–16. Papposphaera sagittifera HET (TEM / Fig. 13; SEM / Figs 10–12, 14–16) from the Arctic (Svalbard / Figs 10–12, 14–16; NEW / Fig. 13). 10–12 – whole cells selected to show the limited occurrence of coccoliths with central processes and the obvious irregularities in size and placement of the body coccoliths; 13 – whole cell showing flagella and haptonema; 14 – cell selected to illustrate the variability in coccolith size, orientation and central area calcification; notice the presence of two types of calyces (encircled); 15 – calyx of the standard 'flaring' P. sagittifera HET type (enlargement from Fig. 14); 16 – 'triangular' calyx (enlargement from Fig. 14) similar to those found in P. sagittifera HET when forming part of a combination coccosphere.
Fig. 1 in Papposphaera heldalii sp. nov. (Haptophyta, Papposphaeraceae) from Svalbard
Fig. 1. Svalbard sampling sites during MicroPolar cruises. The type locality of P. heldalii is marked by a square, and arrows point to additional sampling sites yielding P. heldalii material.
Figs 4–9 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 4–9. Papposphaera sagittifera HET (TEM / Figs 4–5, 7; SEM / Figs 6, 8–9) from the Arctic (West Greenland / Fig. 7; NEW / Figs 4–5; Svalbard / Figs 6, 8, 9). 4 – whole cell with curled up flagella and haptonema (arrow); 5 – detail of calyx; 6 – lateral view of coccolith displaying the two cycles of elements in the rim and details of the stem and the calyx; 7 – complete cell; notice the difference in length of coccolith processes from one end of the cell to the other; 8 – details of central area calcification; notice the short stub-like central proboscis and also possibly tilted pentagonal elements from the distal rim circle (arrows); 9 – detail of two coccoliths one with a short central process and the other with just a central upheaval of the arms of the crossbar.
Figs 38–43 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 38–43. Papposphaera sagittifera cfr. TEM combination coccospheres from Antarctica (EPOS / Figs 39, 42–43; ANT X/3 / Figs 38, 40–41). 38 – complete cell with flagella and haptonema; 39 – cell with just a few P. sagittefera cfr. HET coccoliths and 'Turrisphaera' holococcoliths that are highly asymmetrical at the anterior pole; 40 – detail of holococcoliths from the cell shown in Fig. 38; 41 – higher magnification of anterior cell end of the cell shown in Fig. 38 to show details of the calyces and the central area calcification; 42–43 – details of coccoliths from the cell shown in Fig. 39.
Figs 1–2 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 1–2. Maps of collection sites. 1 – northern hemisphere; 2 – southern hemisphere. Showing also the AMERIEZ sampling grid (Thomsen et al. 1988).
Figs 33–37 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 33–37. Turrisphaera sp. TEM whole mounts from the Antarctic (EPOS samples). 33 – complete cell with flagella and haptonema; 34 – whole cell at higher magnification showing the regular appearance of the tower-shaped holococcoliths; 35–36 – details of holococcoliths showing the hexagonal crystallite plates; 37 – complete cell.
Figs 17–22 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 17–22. Papposphaera sagittifera combination coccospheres (TEM whole mounts from West Greenland). 17 – separated halves of a combination coccosphere; 18 – detail of calyces from Fig. 17 showing the regular triangular outline; the arrow points to a rosette wing that has a distal stepwise notching; 19 – combination coccosphere with the two halves united; 20–21 – detail of the calyces from Fig. 19; the arrow (Fig. 20) points to a rosette wing with a distal step-wise notching; 22 – the four rosette wings are spread out in a fan-like manner clearly showing the shape of the individual wing: the arrow points to a rosette wing with a distal step-wise notching.
Figs 44–48 in Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and
Figs 44–48. Papposphaera sagittifera cfr. HOL. TEM whole mounts from the Antarctic (EPOS / Figs 45, 47–48; ANT X/3 / Figs 44, 46). 44 – details of highly asymmetrical flagellar pole holococcoliths; 45–47 – complete cells with flagella and haptonema; 48 – holococcoliths at high magnification.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.