taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5307995/files/figure.png	https://doi.org/10.5281/zenodo.5307995	FIGURES 1–29. LM images of Australoneis frenguelliae comb. nov. 1–2, 3–4, 24 from sample LPC 15911 (slide c, untreated); 12, 15–16, 28 from sample LPC 15910 (slide a, treated); 5–8, 10–11, 13, 17, 19–23, 27 from sample LPC 15908 (slide c, untreated); 9, 14, 18, 25–26, 29 from sample LPC 15908 (slides a and b, treated). 1–2. Complete frustule showing SV with hyaline structures splitting marginal and mid-valve striae (Fig. 1) and RV with filiform raphe and finely areolate mid-valve striae (Fig. 2). 3–14. Decreasing size series of SV. Note the variation in valve outline and in the extension of mid-valve striae. 15–29. Decreasing size series of RV. Note strong axial and transapical structures, raised axial area and prominent central nodule. Scale bar: 10 µm. Scale bar is the same for all LM figures.	FIGURES 1–29. LM images of Australoneis frenguelliae comb. nov. 1–2, 3–4, 24 from sample LPC 15911 (slide c, untreated); 12, 15–16, 28 from sample LPC 15910 (slide a, treated); 5–8, 10–11, 13, 17, 19–23, 27 from sample LPC 15908 (slide c, untreated); 9, 14, 18, 25–26, 29 from sample LPC 15908 (slides a and b, treated). 1–2. Complete frustule showing SV with hyaline structures splitting marginal and mid-valve striae (Fig. 1) and RV with filiform raphe and finely areolate mid-valve striae (Fig. 2). 3–14. Decreasing size series of SV. Note the variation in valve outline and in the extension of mid-valve striae. 15–29. Decreasing size series of RV. Note strong axial and transapical structures, raised axial area and prominent central nodule. Scale bar: 10 µm. Scale bar is the same for all LM figures.	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5307997/files/figure.png	https://doi.org/10.5281/zenodo.5307997	FIGURES 30–35. LM images of Australoneis frenguelliae comb. nov. Sample LPC 15911 (slide c, untreated). SV at different focus levels showing SVVC still in place. Note short pegged SVVC fimbriae (arrows). Scale bar: 10 µm.	FIGURES 30–35. LM images of Australoneis frenguelliae comb. nov. Sample LPC 15911 (slide c, untreated). SV at different focus levels showing SVVC still in place. Note short pegged SVVC fimbriae (arrows). Scale bar: 10 µm.	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5308003/files/figure.png	https://doi.org/10.5281/zenodo.5308003	FIGURES 36–44. SEM images of Australoneis frenguelliae comb. nov. 36–39, 41 from sample LPC 15910 (untreated); 40, 42–44 from sample LPC 15908 (treated). SV external views. 36. Valve in face view. Note crista marginalis and transapical raised structures. 37. Valve in face view and underlying detached fimbriate SVVC (arrow). 38. Detail of the valve apex. 39. Detail of valve margin showing multiple pores at the end of the stria (arrow) above the shallow furrow (arrowhead) delimiting valve face from valve mantle. 40. Detail of nonareolate mid-valve zone showing embossed transapical structures (arrow) and scattered small pores (arrowheads). Note the numerous small silica warts covering the valve face. 41. Mid-valve short stria showing pegged areolae. 42. Areola of marginal stria occluded by hymen with radial slits and supported by one peg. 43. Detail of valve margin showing multiple pores with rimmed openings (arrow). Note that some of the areolae are round and with hymenes not pegged (arrowheads). 44. Detail of the marginal pores showing rimmed to shortly conical external openings (arrows). Scale bars: 200 nm (Figs 42, 44), 500 nm (Figs 41, 43), 1 µm (Fig. 39), 2 µm (Figs 38, 40), 5 µm (Figs 36–37).	FIGURES 36–44. SEM images of Australoneis frenguelliae comb. nov. 36–39, 41 from sample LPC 15910 (untreated); 40, 42–44 from sample LPC 15908 (treated). SV external views. 36. Valve in face view. Note crista marginalis and transapical raised structures. 37. Valve in face view and underlying detached fimbriate SVVC (arrow). 38. Detail of the valve apex. 39. Detail of valve margin showing multiple pores at the end of the stria (arrow) above the shallow furrow (arrowhead) delimiting valve face from valve mantle. 40. Detail of nonareolate mid-valve zone showing embossed transapical structures (arrow) and scattered small pores (arrowheads). Note the numerous small silica warts covering the valve face. 41. Mid-valve short stria showing pegged areolae. 42. Areola of marginal stria occluded by hymen with radial slits and supported by one peg. 43. Detail of valve margin showing multiple pores with rimmed openings (arrow). Note that some of the areolae are round and with hymenes not pegged (arrowheads). 44. Detail of the marginal pores showing rimmed to shortly conical external openings (arrows). Scale bars: 200 nm (Figs 42, 44), 500 nm (Figs 41, 43), 1 µm (Fig. 39), 2 µm (Figs 38, 40), 5 µm (Figs 36–37).	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5308007/files/figure.png	https://doi.org/10.5281/zenodo.5308007	FIGURES 45–54. SEM images of Australoneis frenguelliae comb. nov. 45, 47, 49 from sample LPC 15908 (treated); 46, 48, 50–51, 54 from sample LPC 15910 (untreated); 52–53 from sample LPC 15908 (untreated). SV internal views. 45, 47, 49. SV without copulae. Note the variable extension of the mid-valve striae. 46. Detail of an elliptic, bi- to triseriate mid-valve stria. 48. Detail of a roughly triangular, multiseriate marginal stria. 50. Areolae of marginal stria occluded by hymenes with radial slits. 51, 54. Detail of the valve margin showing pores occluded by domed hymenes and lying in shallow marginal chamber-like depressions (arrows). 52. SV with SVVC still in place. Note pegged fimbriae lying on the raised virgae (arrows). 53. Detail of the valve apex showing the open SVVC (arrow). Scale bars: 200 nm (Figs 46, 50), 500 nm (Fig. 48), 1 µm (Figs 51–54), 5 µm (Figs 45, 47, 49).	FIGURES 45–54. SEM images of Australoneis frenguelliae comb. nov. 45, 47, 49 from sample LPC 15908 (treated); 46, 48, 50–51, 54 from sample LPC 15910 (untreated); 52–53 from sample LPC 15908 (untreated). SV internal views. 45, 47, 49. SV without copulae. Note the variable extension of the mid-valve striae. 46. Detail of an elliptic, bi- to triseriate mid-valve stria. 48. Detail of a roughly triangular, multiseriate marginal stria. 50. Areolae of marginal stria occluded by hymenes with radial slits. 51, 54. Detail of the valve margin showing pores occluded by domed hymenes and lying in shallow marginal chamber-like depressions (arrows). 52. SV with SVVC still in place. Note pegged fimbriae lying on the raised virgae (arrows). 53. Detail of the valve apex showing the open SVVC (arrow). Scale bars: 200 nm (Figs 46, 50), 500 nm (Fig. 48), 1 µm (Figs 51–54), 5 µm (Figs 45, 47, 49).	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5308009/files/figure.png	https://doi.org/10.5281/zenodo.5308009	FIGURES 55–63. SEM images of Australoneis frenguelliae comb. nov. 55–57, 61–63 from sample LPC15910 (untreated); 58–60 from sample LPC 15908 (treated). RV external views. 55, 57. Complete frustules showing cingulum composed of at least 5 copulae. Note in zigzag hyaline axial area in the RV delimiting a concave mid-valve zone and a raised marginal zone. 56. Detail of Fig. 55 showing the marginal rim surrounding RV (arrow) and ligulate copulae (arrowheads). 59. Valve face. Note the different areola sizes and arrangement between marginal and mid-valve zones. 58. Detail of valve apex showing distal raphe ending terminating in a large and round pore. 60. Detail of the central area showing proximal raphe endings relatively close to each other and with tear-shaped pores. 61. Detail of the valve marginal zone showing striae with multiple, randomly arranged areolae and slightly concave virgae. 62. Round areolae of marginal striae. 63. Detail of the areolae occluded by hymen perforated by slits of different lengths. Scale bars: 200 nm (Figs 62–63), 1 µm (Figs 58, 60–61), 2 µm (Fig. 56), 5 µm (Figs 55, 57, 59).	FIGURES 55–63. SEM images of Australoneis frenguelliae comb. nov. 55–57, 61–63 from sample LPC15910 (untreated); 58–60 from sample LPC 15908 (treated). RV external views. 55, 57. Complete frustules showing cingulum composed of at least 5 copulae. Note in zigzag hyaline axial area in the RV delimiting a concave mid-valve zone and a raised marginal zone. 56. Detail of Fig. 55 showing the marginal rim surrounding RV (arrow) and ligulate copulae (arrowheads). 59. Valve face. Note the different areola sizes and arrangement between marginal and mid-valve zones. 58. Detail of valve apex showing distal raphe ending terminating in a large and round pore. 60. Detail of the central area showing proximal raphe endings relatively close to each other and with tear-shaped pores. 61. Detail of the valve marginal zone showing striae with multiple, randomly arranged areolae and slightly concave virgae. 62. Round areolae of marginal striae. 63. Detail of the areolae occluded by hymen perforated by slits of different lengths. Scale bars: 200 nm (Figs 62–63), 1 µm (Figs 58, 60–61), 2 µm (Fig. 56), 5 µm (Figs 55, 57, 59).	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5308013/files/figure.png	https://doi.org/10.5281/zenodo.5308013	FIGURES 64–71. SEM images of Australoneis frenguelliae comb. nov. 64–65, 67, 69 from sample LPC 15910 (untreated); 66, 70–71 from sample LPC 15908 (treated); 68 from sample LPC 15911 (untreated). RV internal views. 64. Valve with partially broken RVVC, open at one pole (arrow). 66. RV showing raised axial structures and marginal virgae. 68. Tilted valve showing flat virgae at mid-valve and more raised marginal virgae, more prominent towards the margin (arrows). 65. Detail of raised axial structure and marginal virgae. Note undulated RVVC with fimbria-like undulations attached to the virgae (arrowheads) and a second, flat copula (arrow). 67. Detail of valve margin showing broken, hollow RVVC (arrowhead) with “fimbriae” attached to the raised virgae (arrow). 69. Round areolae occluded by hymen perforated by radial slits. 70. Detail of the valve apex showing distal raphe ending with prominent helictoglossa. 71. Detail of the prominent central nodule showing proximal raphe endings bent in opposite directions. Scale bars: 200 nm (Fig. 69), 1 µm (Figs 65, 67, 70–71), 5 µm (Figs 64, 66, 68).	FIGURES 64–71. SEM images of Australoneis frenguelliae comb. nov. 64–65, 67, 69 from sample LPC 15910 (untreated); 66, 70–71 from sample LPC 15908 (treated); 68 from sample LPC 15911 (untreated). RV internal views. 64. Valve with partially broken RVVC, open at one pole (arrow). 66. RV showing raised axial structures and marginal virgae. 68. Tilted valve showing flat virgae at mid-valve and more raised marginal virgae, more prominent towards the margin (arrows). 65. Detail of raised axial structure and marginal virgae. Note undulated RVVC with fimbria-like undulations attached to the virgae (arrowheads) and a second, flat copula (arrow). 67. Detail of valve margin showing broken, hollow RVVC (arrowhead) with “fimbriae” attached to the raised virgae (arrow). 69. Round areolae occluded by hymen perforated by radial slits. 70. Detail of the valve apex showing distal raphe ending with prominent helictoglossa. 71. Detail of the prominent central nodule showing proximal raphe endings bent in opposite directions. Scale bars: 200 nm (Fig. 69), 1 µm (Figs 65, 67, 70–71), 5 µm (Figs 64, 66, 68).	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
038587E6FFE112608CFF3386749D49AF.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5308015/files/figure.png	https://doi.org/10.5281/zenodo.5308015	FIGURES 72–75. SEM images of Australoneis frenguelliae comb. nov. 72–74 from sample LPC 15911 (untreated); 75 from sample LPC 15910 (untreated). RV internal views with parts of the copulae still in place. 72. Second copula, open at one pole (arrow). 73–74. Valves showing broken, hollow RVVC (arrowheads) and thicker, no fimbriate copulae (arrows). 75. Detail of the valve in Fig. 64 with partially broken SVVC. Note unbroken portion to the left (arrow) and broken portion to the right, showing the hollow, tubular nature of the SVVC (framed arrowhead) and wavy “fimbriae” attached to virgae (arrowheads). Scale bars: 2 µm (Figs 74–75), 5 µm (Figs 72–73).	FIGURES 72–75. SEM images of Australoneis frenguelliae comb. nov. 72–74 from sample LPC 15911 (untreated); 75 from sample LPC 15910 (untreated). RV internal views with parts of the copulae still in place. 72. Second copula, open at one pole (arrow). 73–74. Valves showing broken, hollow RVVC (arrowheads) and thicker, no fimbriate copulae (arrows). 75. Detail of the valve in Fig. 64 with partially broken SVVC. Note unbroken portion to the left (arrow) and broken portion to the right, showing the hollow, tubular nature of the SVVC (framed arrowhead) and wavy “fimbriae” attached to virgae (arrowheads). Scale bars: 2 µm (Figs 74–75), 5 µm (Figs 72–73).	2021-08-04	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.		Zenodo	biologists	Guerrero, José M.;Riaux-Gobin, Catherine;Debandi, Juan I.;Zacher, Katharina;Quartino, Maria Liliana;Campana, Gabriela L.			
