taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
775C9A05D413FFA1FCA9FCFF95A591D3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15520238/files/figure.png	https://doi.org/10.5281/zenodo.15520238	Figs 7–11. SEM micrographs of Palusphaera vandelii. Scale bar = 5 μm for Figs 7, 8, 9, 11. Fig. 7. Complete coccosphere. Fig. 8. Specimen with coccoliths that bear planolith bases with usually three nodes in proximal side (arrow). Fig. 9. Collapsed coccosphere with circular coccoliths; inner rim cycle is typically wider in proximal side (arrow). Fig. 10. Detailed view of Fig. 9; arrow shows the laevogyral curvature of the crystal elements of the lamellar cycle, observed in proximal view. Scale bar = 2 μm. Fig. 11. Disarticulated coccoliths bearing spines with spirally arranged crystal segments, highly visible towards the central process (arrows).	Figs 7–11. SEM micrographs of Palusphaera vandelii. Scale bar = 5 μm for Figs 7, 8, 9, 11. Fig. 7. Complete coccosphere. Fig. 8. Specimen with coccoliths that bear planolith bases with usually three nodes in proximal side (arrow). Fig. 9. Collapsed coccosphere with circular coccoliths; inner rim cycle is typically wider in proximal side (arrow). Fig. 10. Detailed view of Fig. 9; arrow shows the laevogyral curvature of the crystal elements of the lamellar cycle, observed in proximal view. Scale bar = 2 μm. Fig. 11. Disarticulated coccoliths bearing spines with spirally arranged crystal segments, highly visible towards the central process (arrows).	2021-11-03	Archontikis, Odysseas A.;Young, Jeremy R.		Zenodo	biologists	Archontikis, Odysseas A.;Young, Jeremy R.			
775C9A05D41CFFA1FFF1FB809153923A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15520242/files/figure.png	https://doi.org/10.5281/zenodo.15520242	Figs 12–16. SEM micrographs of Palusphaera probertii sp. nov. Fig. 12. Holotype and complete coccosphere specimen. Scale bar = 2 μm. Fig. 13. Detailed view of a specimen with broadly elliptical planoliths showing a central pore and three angular nodes on the proximal side (a) and clockwise imbrication on the distal side (b); broken spine (c) is long and thin, formed of crystallites arranged parallel to the spine axis. Scale bar = 2 μm. Fig. 14. Collapsed coccosphere. Scale bar = 5 μm. Fig. 15. Incomplete coccolith in distal view; crystal elements show dextrogyral curvature (arrow). Scale bar = 1 μm. Fig. 16. Detailed view of a broadly elliptical coccolith, small in size, and its broken styliform process. The lath-like crystal segments of the spine are arranged parallel to its long axis (see arrow). Scale bar = 1 μm.	Figs 12–16. SEM micrographs of Palusphaera probertii sp. nov. Fig. 12. Holotype and complete coccosphere specimen. Scale bar = 2 μm. Fig. 13. Detailed view of a specimen with broadly elliptical planoliths showing a central pore and three angular nodes on the proximal side (a) and clockwise imbrication on the distal side (b); broken spine (c) is long and thin, formed of crystallites arranged parallel to the spine axis. Scale bar = 2 μm. Fig. 14. Collapsed coccosphere. Scale bar = 5 μm. Fig. 15. Incomplete coccolith in distal view; crystal elements show dextrogyral curvature (arrow). Scale bar = 1 μm. Fig. 16. Detailed view of a broadly elliptical coccolith, small in size, and its broken styliform process. The lath-like crystal segments of the spine are arranged parallel to its long axis (see arrow). Scale bar = 1 μm.	2021-11-03	Archontikis, Odysseas A.;Young, Jeremy R.		Zenodo	biologists	Archontikis, Odysseas A.;Young, Jeremy R.			
775C9A05D41CFFA0FCABF81E9068921D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15520244/files/figure.png	https://doi.org/10.5281/zenodo.15520244	Figs 17–21. SEM micrographs of Palusphaera crosiae sp. nov. Scale bar = 5 μm for Figs 17, 18, 19. Fig. 17. Holotype and complete coccosphere. Fig. 18. Detailed view of Fig. 17; arrow indicates the part of the spine being markedly thicker at the one-third to one-quarter height from the base. Fig. 19. Complete coccosphere with subcircular planoliths. Fig. 20. Detailed view of Fig. 19; planoliths with (a) a relatively wide outer rim cycle, (b) a styliform spine formed at the centre of the lamellar cycle in distal side, and (c) three robust angular nodes surrounding the central pore in proximal side. Scale bar = 2 μm. Fig. 21. Side view of styliform processes of disarticulated spine-bearing planoliths. Scale bar = 1 μm.	Figs 17–21. SEM micrographs of Palusphaera crosiae sp. nov. Scale bar = 5 μm for Figs 17, 18, 19. Fig. 17. Holotype and complete coccosphere. Fig. 18. Detailed view of Fig. 17; arrow indicates the part of the spine being markedly thicker at the one-third to one-quarter height from the base. Fig. 19. Complete coccosphere with subcircular planoliths. Fig. 20. Detailed view of Fig. 19; planoliths with (a) a relatively wide outer rim cycle, (b) a styliform spine formed at the centre of the lamellar cycle in distal side, and (c) three robust angular nodes surrounding the central pore in proximal side. Scale bar = 2 μm. Fig. 21. Side view of styliform processes of disarticulated spine-bearing planoliths. Scale bar = 1 μm.	2021-11-03	Archontikis, Odysseas A.;Young, Jeremy R.		Zenodo	biologists	Archontikis, Odysseas A.;Young, Jeremy R.			
775C9A05D41DFFA3FCAAF83997A49214.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15520246/files/figure.png	https://doi.org/10.5281/zenodo.15520246	Figs 22–24. SEM micrographs of Palusphaera bownii sp. nov. Scale bar = 2 μm. Fig. 22. Holotype. Collapsed coccosphere bearing nearly circular planolith bases with outer rim cycles that are broader on the distal side (arrow a) than on the proximal side (arrow b); the central process displays a short trumpet-shaped process (arrow c). Fig. 23. Collapsed specimen bearing trumpet-shaped spines with spirally arranged crystal segments (see arrow) extending outwards forming distinct apertures. Fig. 24. Detailed view of Fig. 23 showing the ultrastructure of the spine aperture (arrows) and the dextrogyral curvature of lamellar elements in distal view.	Figs 22–24. SEM micrographs of Palusphaera bownii sp. nov. Scale bar = 2 μm. Fig. 22. Holotype. Collapsed coccosphere bearing nearly circular planolith bases with outer rim cycles that are broader on the distal side (arrow a) than on the proximal side (arrow b); the central process displays a short trumpet-shaped process (arrow c). Fig. 23. Collapsed specimen bearing trumpet-shaped spines with spirally arranged crystal segments (see arrow) extending outwards forming distinct apertures. Fig. 24. Detailed view of Fig. 23 showing the ultrastructure of the spine aperture (arrows) and the dextrogyral curvature of lamellar elements in distal view.	2021-11-03	Archontikis, Odysseas A.;Young, Jeremy R.		Zenodo	biologists	Archontikis, Odysseas A.;Young, Jeremy R.			
