taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520567/files/figure.png	https://doi.org/10.5281/zenodo.14520567	FIGURES 2–3. Amphitetras antediluviana, LM. Strain BL-5_12092019 (Laspi Bay, Black Sea). 2. Cell macrocolony. 3. Alive cell, girdle view. Scale bars = 100 μm (Fig. 2), 10 μm (Fig. 3).	FIGURES 2–3. Amphitetras antediluviana, LM. Strain BL-5_12092019 (Laspi Bay, Black Sea). 2. Cell macrocolony. 3. Alive cell, girdle view. Scale bars = 100 μm (Fig. 2), 10 μm (Fig. 3).	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520569/files/figure.png	https://doi.org/10.5281/zenodo.14520569	FIGURES 4–10. Amphitetras antediluviana, LM.4–6, 8–9. Strain BL-5_12092019 (Laspi Bay, Black Sea). 7, 10. Strain АZ-12_24122019 (Sea of Azov). 4–7. Valve view. 8–10. Girdle view. Scale bars = 10 μm.	FIGURES 4–10. Amphitetras antediluviana, LM.4–6, 8–9. Strain BL-5_12092019 (Laspi Bay, Black Sea). 7, 10. Strain АZ-12_24122019 (Sea of Azov). 4–7. Valve view. 8–10. Girdle view. Scale bars = 10 μm.	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520571/files/figure.png	https://doi.org/10.5281/zenodo.14520571	FIGURES 11–16. Amphitetras antediluviana, SEM. Strain BF-36_18122019 (Feodosiya Bay, Black Sea). 11–12. External valve view. Black arrows point to ocelli. 13. External girdle view. White arrows point to rows of poroids at the girdle. 14. Internal valve view. 15. Details of areolae structure, externally. Black arrow points to volate occlusion, white arrow points to cribrate occlusion. 16. Details of areolae structure, internally. White arrows point to supporting props. Scale bars = 10 μm (Figs 11–12, 14), 15 μm (Fig. 13), 1 μm (Figs 15–16).	FIGURES 11–16. Amphitetras antediluviana, SEM. Strain BF-36_18122019 (Feodosiya Bay, Black Sea). 11–12. External valve view. Black arrows point to ocelli. 13. External girdle view. White arrows point to rows of poroids at the girdle. 14. Internal valve view. 15. Details of areolae structure, externally. Black arrow points to volate occlusion, white arrow points to cribrate occlusion. 16. Details of areolae structure, internally. White arrows point to supporting props. Scale bars = 10 μm (Figs 11–12, 14), 15 μm (Fig. 13), 1 μm (Figs 15–16).	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520573/files/figure.png	https://doi.org/10.5281/zenodo.14520573	FIGURES 17–22. Amphitetras antediluviana, SEM. Strain CF-4_23072020 (Cape Fiolent, Black Sea). 17. External valve view. Black arrows point to ocelli. 18. Internal valve view. 19. External girdle view. White arrows point to rows of poroids at the girdle. 20. Details of areolae structure, externally. Black arrow points to volate occlusion, white arrow points to cribrate occlusion, white arrowhead points to siliceous particle. 21. Details of ocellus structure, externally. 22. Details of ocellus structure, internally. White arrows point to supporting props. Scale bars = 5 μm (Figs 17–18), 10 μm (Fig. 19), 1 μm (Fig. 20), 2 μm (Figs 21–22).	FIGURES 17–22. Amphitetras antediluviana, SEM. Strain CF-4_23072020 (Cape Fiolent, Black Sea). 17. External valve view. Black arrows point to ocelli. 18. Internal valve view. 19. External girdle view. White arrows point to rows of poroids at the girdle. 20. Details of areolae structure, externally. Black arrow points to volate occlusion, white arrow points to cribrate occlusion, white arrowhead points to siliceous particle. 21. Details of ocellus structure, externally. 22. Details of ocellus structure, internally. White arrows point to supporting props. Scale bars = 5 μm (Figs 17–18), 10 μm (Fig. 19), 1 μm (Fig. 20), 2 μm (Figs 21–22).	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520575/files/figure.png	https://doi.org/10.5281/zenodo.14520575	FIGURES 23–28. Amphitetras antediluviana, SEM. Strain AZ-12_24122019 (Sea of Azov). 23. External valve view. Black arrows point to ocelli. 24. Internal valve view. 25. External girdle view. White arrows point to rows of poroids at the girdle, white arrowheads point to valvocopulae. 26. Details of ocellus structure, externally. White arrowheads point to siliceous particles. 27. Details of cribrate areolae structure, externally. Black arrowheads point to siliceous particles at the crossbars of occlusions, white arrowheads point to C-shaped slits. 28. Details of volate areolae structure, externally. Black arrows point to spathulate formations of volae. Scale bars = 5 μm (Fig. 23), 10 μm (Figs 24–25), 2 μm (Fig. 26), 0.5 μm (Figs 27–28).	FIGURES 23–28. Amphitetras antediluviana, SEM. Strain AZ-12_24122019 (Sea of Azov). 23. External valve view. Black arrows point to ocelli. 24. Internal valve view. 25. External girdle view. White arrows point to rows of poroids at the girdle, white arrowheads point to valvocopulae. 26. Details of ocellus structure, externally. White arrowheads point to siliceous particles. 27. Details of cribrate areolae structure, externally. Black arrowheads point to siliceous particles at the crossbars of occlusions, white arrowheads point to C-shaped slits. 28. Details of volate areolae structure, externally. Black arrows point to spathulate formations of volae. Scale bars = 5 μm (Fig. 23), 10 μm (Figs 24–25), 2 μm (Fig. 26), 0.5 μm (Figs 27–28).	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520577/files/figure.png	https://doi.org/10.5281/zenodo.14520577	FIGURES 29–34. Amphitetras antediluviana, SEM. Strain BL-5_12092019 (Laspi Bay, Black Sea). 29. External valve view. Black arrows point to ocelli, white arrows point to the rows of poroids at the girdle, white arrowhead points to polar depression. 30–32. Internal valve view. 32. Details of ocellus structure, externally. Black arrowheads point to pores of ocelli. 33. Details of polar area structure, externally. Black arrow points to volate areolae, white arrow points to cribrate areolae, white arrowheads point to siliceous particles. 34. Details of polar area structure, externally. Black arrows point to volate areolae, white arrows point to cribrate areolae. Scale bars = 20 μm (Fig. 29), 10 μm (Fig. 30), 5 μm (Fig. 31), 2 μm (Fig. 32), 4 μm (Figs 33–34).	FIGURES 29–34. Amphitetras antediluviana, SEM. Strain BL-5_12092019 (Laspi Bay, Black Sea). 29. External valve view. Black arrows point to ocelli, white arrows point to the rows of poroids at the girdle, white arrowhead points to polar depression. 30–32. Internal valve view. 32. Details of ocellus structure, externally. Black arrowheads point to pores of ocelli. 33. Details of polar area structure, externally. Black arrow points to volate areolae, white arrow points to cribrate areolae, white arrowheads point to siliceous particles. 34. Details of polar area structure, externally. Black arrows point to volate areolae, white arrows point to cribrate areolae. Scale bars = 20 μm (Fig. 29), 10 μm (Fig. 30), 5 μm (Fig. 31), 2 μm (Fig. 32), 4 μm (Figs 33–34).	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
03F84846FF959D08FF1FF892FA27FCC1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14520565/files/figure.png	https://doi.org/10.5281/zenodo.14520565	FIGURE 1. Phylogenetic position of the novel Amphitetras antediluviana strains (indicated in bold) based on Bayesian inference for the partial rbcL and 18S rRNA genes. The total length of the alignment is 1,309 characters. Bootstrap supports (BS) from ML (constructed by RAxML) and posterior probabilities (PP) from BI (constructed by Beast) are presented on the nodes in order. Only BS and PP above 50 and 0.9 are shown. Strain numbers (if available) and GenBank numbers are indicated for all sequences.	FIGURE 1. Phylogenetic position of the novel Amphitetras antediluviana strains (indicated in bold) based on Bayesian inference for the partial rbcL and 18S rRNA genes. The total length of the alignment is 1,309 characters. Bootstrap supports (BS) from ML (constructed by RAxML) and posterior probabilities (PP) from BI (constructed by Beast) are presented on the nodes in order. Only BS and PP above 50 and 0.9 are shown. Strain numbers (if available) and GenBank numbers are indicated for all sequences.	2024-11-19	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim		Zenodo	biologists	Nevrova, Elena;Maltsev, Yevhen;Kezlya, Elena;Mironov, Andrei;Kulikovskiy, Maxim			
