taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
6C331D75FFBAF955FF66F88F1E2EFDC7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14522531/files/figure.png	https://doi.org/10.5281/zenodo.14522531	FIGURES 2–41. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Light microscopy (LM) pictures taken from the holotype slide (ICN212270, ‘Cerquinha’ Lake, RS, Brazil). Figs 2–25. LM diminution series of the rapheless valve (RLV). Figs 26–41. LM diminution series of the raphe valve (RV). Number of * indicates same specimens under different focus.	FIGURES 2–41. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Light microscopy (LM) pictures taken from the holotype slide (ICN212270, ‘Cerquinha’ Lake, RS, Brazil). Figs 2–25. LM diminution series of the rapheless valve (RLV). Figs 26–41. LM diminution series of the raphe valve (RV). Number of * indicates same specimens under different focus.	2024-12-10	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.		Zenodo	biologists	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.			
6C331D75FFBAF955FF66F88F1E2EFDC7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14522533/files/figure.png	https://doi.org/10.5281/zenodo.14522533	FIGURES 42–47. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Scaning electron microscopy (SEM) external views of rapheless valve showing striation and surface patterns. Note the and irregular depression lines along the axial area including shallow rounded and irregular depressions that are concentrated at the central area, and the clusters of small areolae (up to five) on the valve mantle. Striae usually composed by a range of two (up to three, closer to the margins) to one (towards the axial area) irregular shaped areola. Specimens from several lakes: Figures 42–43: Fortaleza (ICN212272); Figure 44: Cidreira (ICN212273); Figures 45–47: Cerquinha (ICN212270); Figure 46: Itapeva (ICN212271).	FIGURES 42–47. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Scaning electron microscopy (SEM) external views of rapheless valve showing striation and surface patterns. Note the and irregular depression lines along the axial area including shallow rounded and irregular depressions that are concentrated at the central area, and the clusters of small areolae (up to five) on the valve mantle. Striae usually composed by a range of two (up to three, closer to the margins) to one (towards the axial area) irregular shaped areola. Specimens from several lakes: Figures 42–43: Fortaleza (ICN212272); Figure 44: Cidreira (ICN212273); Figures 45–47: Cerquinha (ICN212270); Figure 46: Itapeva (ICN212271).	2024-12-10	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.		Zenodo	biologists	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.			
6C331D75FFBAF955FF66F88F1E2EFDC7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14522535/files/figure.png	https://doi.org/10.5281/zenodo.14522535	FIGURES 48–52. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Scaning electron microscopy (SEM) internal views of rapheless valve showing the raised virgae and aperture of the cavum. Note slightly expanded axial area near the central area and the striae usually composed by a range of two (up to three, closer to the margins). Populations from of several lakes: Figures 48–49: Fortaleza (ICN212272); Figures 50–52: Cerquinha (ICN212270): Figure 51: Itapeva (ICN212271).	FIGURES 48–52. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Scaning electron microscopy (SEM) internal views of rapheless valve showing the raised virgae and aperture of the cavum. Note slightly expanded axial area near the central area and the striae usually composed by a range of two (up to three, closer to the margins). Populations from of several lakes: Figures 48–49: Fortaleza (ICN212272); Figures 50–52: Cerquinha (ICN212270): Figure 51: Itapeva (ICN212271).	2024-12-10	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.		Zenodo	biologists	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.			
6C331D75FFBAF955FF66F88F1E2EFDC7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14522537/files/figure.png	https://doi.org/10.5281/zenodo.14522537	FIGURES 53–56. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Scaning electron microscopy (SEM) external and internal views of raphe valve showing striation and surface patterns. Note multiseriate striae usually composed by a range of three to four small rounded areolae. Specimens from several lakes: Figures 53–55: Cerquinha (ICN212270); Figure 56: Horácio (ICN212274).	FIGURES 53–56. Planothidium minuanum M.G.Junqueira, L.O.Crossetti & C.E.Wetzel, sp. nov. Scaning electron microscopy (SEM) external and internal views of raphe valve showing striation and surface patterns. Note multiseriate striae usually composed by a range of three to four small rounded areolae. Specimens from several lakes: Figures 53–55: Cerquinha (ICN212270); Figure 56: Horácio (ICN212274).	2024-12-10	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.		Zenodo	biologists	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.			
6C331D75FFBAF955FF66F88F1E2EFDC7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14522529/files/figure.png	https://doi.org/10.5281/zenodo.14522529	FIGURE 1. Location of the sampling sites situated on coastal lakes, within the Tramandaí River Watershed, located in coast of the state of Rio Grande do Sul, southern Brazil. Lakes marked in blue indicates where Planothidium minuanum sp. nov. occured. Material illustrated comes from lakes Cerquinha (ICN212270), Cidreira (ICN212273), Fortaleza (ICN212272), Itapeva (ICN212271) and Horácio (ICN212274) here highlighted.	FIGURE 1. Location of the sampling sites situated on coastal lakes, within the Tramandaí River Watershed, located in coast of the state of Rio Grande do Sul, southern Brazil. Lakes marked in blue indicates where Planothidium minuanum sp. nov. occured. Material illustrated comes from lakes Cerquinha (ICN212270), Cidreira (ICN212273), Fortaleza (ICN212272), Itapeva (ICN212271) and Horácio (ICN212274) here highlighted.	2024-12-10	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.		Zenodo	biologists	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.			
6C331D75FFBAF955FF66F88F1E2EFDC7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14522539/files/figure.png	https://doi.org/10.5281/zenodo.14522539	FIGURE 57. Relative abundance of Planothidium minuanum sp. nov. across the coastal lakes and the relationships between electrical conductivity (mS/cm), total phosphorus (mg L−1), total nitrogen (mg L−1), pH, total suspend solids (mg L−1), and water transparency (cm). Percentages based in counting of at least 500 diatom valves per sample (n= 62). Dashed Green lines indicate weighted average optima and grey lines indicate mean variable (n= 62).	FIGURE 57. Relative abundance of Planothidium minuanum sp. nov. across the coastal lakes and the relationships between electrical conductivity (mS/cm), total phosphorus (mg L−1), total nitrogen (mg L−1), pH, total suspend solids (mg L−1), and water transparency (cm). Percentages based in counting of at least 500 diatom valves per sample (n= 62). Dashed Green lines indicate weighted average optima and grey lines indicate mean variable (n= 62).	2024-12-10	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.		Zenodo	biologists	Junqueira, Maria Gabriela;Crossetti, Luciane O.;Wetzel, Carlos E.			
