taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03AD87EBFFB657210D0DF9503C8CF885.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858149/files/figure.png	https://doi.org/10.5281/zenodo.14858149	Figure 1. Distance biplots of the Principal Component Analysis (PCA) comprising data for Campanulariidae. A, first and second principal components (PCs) of the PCA with the complete dataset; B, second and third PCs of the PCA with the complete dataset; C, first and second PCs of the PCA without the genus Orthopyxis; D. First and second PCs of the PCA with Campanularia and Rhizocaulus; E, first and second PCs of the PCA with Campanularia and Orthopyxis; F, first and second PCs of the PCA with Orthopyxis, but excluding O. sargassicola and O. crenata. In E and F, position of the specimen Orthopyxis integra_1_USA is shown (see Supporting Information, Table S1). Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	Figure 1. Distance biplots of the Principal Component Analysis (PCA) comprising data for Campanulariidae. A, first and second principal components (PCs) of the PCA with the complete dataset; B, second and third PCs of the PCA with the complete dataset; C, first and second PCs of the PCA without the genus Orthopyxis; D. First and second PCs of the PCA with Campanularia and Rhizocaulus; E, first and second PCs of the PCA with Campanularia and Orthopyxis; F, first and second PCs of the PCA with Orthopyxis, but excluding O. sargassicola and O. crenata. In E and F, position of the specimen Orthopyxis integra_1_USA is shown (see Supporting Information, Table S1). Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB657210D0DF9503C8CF885.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858151/files/figure.png	https://doi.org/10.5281/zenodo.14858151	Figure 2. General morphology of species of Campanulariidae and Clytiidae. A, Bonneviella regia (USNM 1106181); B, Bonneviella superba (USNM 1106182); C, Bonneviella ingens (USNM 1106187); D, Silicularia rosea (PT11_ARG); E, Clytia cf. gracilis sp.1 (EL32_SLV), with gonotheca; F, Clytia cf. gracilis sp.3 (EL05_SLV), with detail of hydrothecal cusps; G, Clytia cf. gracilis sp.5 (PAF03_BRA); H, Clytia cf. hemisphaerica sp.1 (FLT03_USA), with detail of hydrothecal cusps; I, Clytia cf. hemisphaerica sp.2 (EL06_SLV), with gonotheca. Scales: A, C = 1 mm; B = 2mm; F (both), G, H (cusps), I (trophosome) = 100 μm; D, E (both), H (trophosome), I (gonotheca) = 200 μm.	Figure 2. General morphology of species of Campanulariidae and Clytiidae. A, Bonneviella regia (USNM 1106181); B, Bonneviella superba (USNM 1106182); C, Bonneviella ingens (USNM 1106187); D, Silicularia rosea (PT11_ARG); E, Clytia cf. gracilis sp.1 (EL32_SLV), with gonotheca; F, Clytia cf. gracilis sp.3 (EL05_SLV), with detail of hydrothecal cusps; G, Clytia cf. gracilis sp.5 (PAF03_BRA); H, Clytia cf. hemisphaerica sp.1 (FLT03_USA), with detail of hydrothecal cusps; I, Clytia cf. hemisphaerica sp.2 (EL06_SLV), with gonotheca. Scales: A, C = 1 mm; B = 2mm; F (both), G, H (cusps), I (trophosome) = 100 μm; D, E (both), H (trophosome), I (gonotheca) = 200 μm.	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB657210D0DF9503C8CF885.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858153/files/figure.png	https://doi.org/10.5281/zenodo.14858153	Figure 3. Mean ± standard deviation of morphometric data for Campanularia. Morphological variation in C. volubilis is presented as intracolony (I) and population variation (P, ZMUC and USNM 29217; see Supporting Information, Table S1) for comparison. A, length of hydrothecae (LH, μm); B, maximum height of hydrothecal cusps (HCMax, μm); C, number of hydrothecal cusps (NC); D, length:diameter ratio of hydrotheca (HRatio). Brackets = [number of specimens measured].	Figure 3. Mean ± standard deviation of morphometric data for Campanularia. Morphological variation in C. volubilis is presented as intracolony (I) and population variation (P, ZMUC and USNM 29217; see Supporting Information, Table S1) for comparison. A, length of hydrothecae (LH, μm); B, maximum height of hydrothecal cusps (HCMax, μm); C, number of hydrothecal cusps (NC); D, length:diameter ratio of hydrotheca (HRatio). Brackets = [number of specimens measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB757250C84F91F3D2CF9A5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858155/files/figure.png	https://doi.org/10.5281/zenodo.14858155	Figure 4. Mean ± standard deviation of morphometric data for Orthopyxis, including a comparison with species of Campanularia (i.e. C. subantarctica, C. hincksii and Campanularia sp.; Supporting Information, Table S1). Morphological variation in O. crenata and O. integra is presented separately for some populations and combined (‘all’), for comparison. Data for specimens of O.crenata from New Zealand, Argentina and Brazil are represented with numbers 1 to 3, respectively. Similarly, data for specimens of O. integra from the Aleutian Islands and Argentina are represented with number 1 and 2, respectively. A, B, maximum perisarc thickness of hydrotheca at medial portion (PHMe, μm); C, length:diameter ratio of hydrotheca (HRatio); D, length of hydrotheca (LH, μm). Brackets = [number of specimens measured].	Figure 4. Mean ± standard deviation of morphometric data for Orthopyxis, including a comparison with species of Campanularia (i.e. C. subantarctica, C. hincksii and Campanularia sp.; Supporting Information, Table S1). Morphological variation in O. crenata and O. integra is presented separately for some populations and combined (‘all’), for comparison. Data for specimens of O.crenata from New Zealand, Argentina and Brazil are represented with numbers 1 to 3, respectively. Similarly, data for specimens of O. integra from the Aleutian Islands and Argentina are represented with number 1 and 2, respectively. A, B, maximum perisarc thickness of hydrotheca at medial portion (PHMe, μm); C, length:diameter ratio of hydrotheca (HRatio); D, length of hydrotheca (LH, μm). Brackets = [number of specimens measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB757250C84F91F3D2CF9A5.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858149/files/figure.png	https://doi.org/10.5281/zenodo.14858149	Figure 1. Distance biplots of the Principal Component Analysis (PCA) comprising data for Campanulariidae. A, first and second principal components (PCs) of the PCA with the complete dataset; B, second and third PCs of the PCA with the complete dataset; C, first and second PCs of the PCA without the genus Orthopyxis; D. First and second PCs of the PCA with Campanularia and Rhizocaulus; E, first and second PCs of the PCA with Campanularia and Orthopyxis; F, first and second PCs of the PCA with Orthopyxis, but excluding O. sargassicola and O. crenata. In E and F, position of the specimen Orthopyxis integra_1_USA is shown (see Supporting Information, Table S1). Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	Figure 1. Distance biplots of the Principal Component Analysis (PCA) comprising data for Campanulariidae. A, first and second principal components (PCs) of the PCA with the complete dataset; B, second and third PCs of the PCA with the complete dataset; C, first and second PCs of the PCA without the genus Orthopyxis; D. First and second PCs of the PCA with Campanularia and Rhizocaulus; E, first and second PCs of the PCA with Campanularia and Orthopyxis; F, first and second PCs of the PCA with Orthopyxis, but excluding O. sargassicola and O. crenata. In E and F, position of the specimen Orthopyxis integra_1_USA is shown (see Supporting Information, Table S1). Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB2572E0FD4F9283A94FA4C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858158/files/figure.png	https://doi.org/10.5281/zenodo.14858158	Figure 5. Distance biplots of Principal Component Analysis (PCA) comprising data for Clytiidae.A, first and second principal components (PCs) of the PCA with the complete dataset; B, second and third PCs of the PCA with the complete dataset; C, first and second PCs of the PCA without Clytia cf. gracilis lineages; D, first and second PCs of the PCA without C. cf. gracilis lineages and measurements related to internodes of erect colonies (NIS, LIS, AIS, PIS, DIS); E, first and second PCs of the PCA with lineages of C. cf.gracilis; F, first and second PCs of the PCA with lineages of C. cf.gracilis, excluding measurements related to internodes of erect colonies (NIS, LIS, AIS, PIS, DIS). Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	Figure 5. Distance biplots of Principal Component Analysis (PCA) comprising data for Clytiidae.A, first and second principal components (PCs) of the PCA with the complete dataset; B, second and third PCs of the PCA with the complete dataset; C, first and second PCs of the PCA without Clytia cf. gracilis lineages; D, first and second PCs of the PCA without C. cf. gracilis lineages and measurements related to internodes of erect colonies (NIS, LIS, AIS, PIS, DIS); E, first and second PCs of the PCA with lineages of C. cf.gracilis; F, first and second PCs of the PCA with lineages of C. cf.gracilis, excluding measurements related to internodes of erect colonies (NIS, LIS, AIS, PIS, DIS). Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB2572E0FD4F9283A94FA4C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858162/files/figure.png	https://doi.org/10.5281/zenodo.14858162	Figure 6. Mean ± standard deviation of morphometric data for Clytia species. Data for Clytia sp.1 and sp.2 refers to intracolony (I) variation. A, length of the hydrotheca (LH, μm); B, maximum height of hydrothecal cusps (HCMax, μm); C, maximum diameter of hydrotheca at medial portion (DHMe, μm); D, thickness of diaphragm (TD, μm); E, maximum hydrothecal perisarc thickness at margin (PHMa, μm); F, length:diameter ratio of hydrotheca (HRatio). Brackets = [number of specimens measured].	Figure 6. Mean ± standard deviation of morphometric data for Clytia species. Data for Clytia sp.1 and sp.2 refers to intracolony (I) variation. A, length of the hydrotheca (LH, μm); B, maximum height of hydrothecal cusps (HCMax, μm); C, maximum diameter of hydrotheca at medial portion (DHMe, μm); D, thickness of diaphragm (TD, μm); E, maximum hydrothecal perisarc thickness at margin (PHMa, μm); F, length:diameter ratio of hydrotheca (HRatio). Brackets = [number of specimens measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB2572E0FD4F9283A94FA4C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858151/files/figure.png	https://doi.org/10.5281/zenodo.14858151	Figure 2. General morphology of species of Campanulariidae and Clytiidae. A, Bonneviella regia (USNM 1106181); B, Bonneviella superba (USNM 1106182); C, Bonneviella ingens (USNM 1106187); D, Silicularia rosea (PT11_ARG); E, Clytia cf. gracilis sp.1 (EL32_SLV), with gonotheca; F, Clytia cf. gracilis sp.3 (EL05_SLV), with detail of hydrothecal cusps; G, Clytia cf. gracilis sp.5 (PAF03_BRA); H, Clytia cf. hemisphaerica sp.1 (FLT03_USA), with detail of hydrothecal cusps; I, Clytia cf. hemisphaerica sp.2 (EL06_SLV), with gonotheca. Scales: A, C = 1 mm; B = 2mm; F (both), G, H (cusps), I (trophosome) = 100 μm; D, E (both), H (trophosome), I (gonotheca) = 200 μm.	Figure 2. General morphology of species of Campanulariidae and Clytiidae. A, Bonneviella regia (USNM 1106181); B, Bonneviella superba (USNM 1106182); C, Bonneviella ingens (USNM 1106187); D, Silicularia rosea (PT11_ARG); E, Clytia cf. gracilis sp.1 (EL32_SLV), with gonotheca; F, Clytia cf. gracilis sp.3 (EL05_SLV), with detail of hydrothecal cusps; G, Clytia cf. gracilis sp.5 (PAF03_BRA); H, Clytia cf. hemisphaerica sp.1 (FLT03_USA), with detail of hydrothecal cusps; I, Clytia cf. hemisphaerica sp.2 (EL06_SLV), with gonotheca. Scales: A, C = 1 mm; B = 2mm; F (both), G, H (cusps), I (trophosome) = 100 μm; D, E (both), H (trophosome), I (gonotheca) = 200 μm.	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB2572E0FD4F9283A94FA4C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858153/files/figure.png	https://doi.org/10.5281/zenodo.14858153	Figure 3. Mean ± standard deviation of morphometric data for Campanularia. Morphological variation in C. volubilis is presented as intracolony (I) and population variation (P, ZMUC and USNM 29217; see Supporting Information, Table S1) for comparison. A, length of hydrothecae (LH, μm); B, maximum height of hydrothecal cusps (HCMax, μm); C, number of hydrothecal cusps (NC); D, length:diameter ratio of hydrotheca (HRatio). Brackets = [number of specimens measured].	Figure 3. Mean ± standard deviation of morphometric data for Campanularia. Morphological variation in C. volubilis is presented as intracolony (I) and population variation (P, ZMUC and USNM 29217; see Supporting Information, Table S1) for comparison. A, length of hydrothecae (LH, μm); B, maximum height of hydrothecal cusps (HCMax, μm); C, number of hydrothecal cusps (NC); D, length:diameter ratio of hydrotheca (HRatio). Brackets = [number of specimens measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB957330824FA523899FD10.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858164/files/figure.png	https://doi.org/10.5281/zenodo.14858164	Figure 7. Distance biplots of the Principal Component Analysis (PCA) comprising data for the family Obeliidae. A, first and second principal components (PCs) of the PCA with the complete dataset; B, first and second PCs of the PCA with the complete dataset, excluding measurements related to second-order branches of erect colonies (NIB, DIB, AIB, LIB, PIB); C, first and second PCs of the PCA with species of Obelia only; D, first and second PCs of the PCA without species of Obelia; E, first and second PCs of the PCA with lineages of O. cf.dichotoma and O. longissima; F, first and second PCs of the PCA with measurements of the gonothecae. Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	Figure 7. Distance biplots of the Principal Component Analysis (PCA) comprising data for the family Obeliidae. A, first and second principal components (PCs) of the PCA with the complete dataset; B, first and second PCs of the PCA with the complete dataset, excluding measurements related to second-order branches of erect colonies (NIB, DIB, AIB, LIB, PIB); C, first and second PCs of the PCA with species of Obelia only; D, first and second PCs of the PCA without species of Obelia; E, first and second PCs of the PCA with lineages of O. cf.dichotoma and O. longissima; F, first and second PCs of the PCA with measurements of the gonothecae. Numbers in parentheses indicate percentages of variation explained by each principal component. Abbreviations of morphometric variables as in Table 1, and those in bold indicate measurements that were correlated with each principal component (Pearson correlation>0.7 and <–0.7).	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB957330824FA523899FD10.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858166/files/figure.png	https://doi.org/10.5281/zenodo.14858166	Figure 8. Mean ± standard deviation of morphometric data for Obeliidae. Data for the genus Obelia comprises all species included in this study, except O. geniculata. A, maximum hydrothecal perisarc thickness at margin (PHMa, μm); B, maximum hydrothecal diameter at margin (DHMa, μm); C, length of pedicel (LP, μm); D, length of the hydrotheca (LH, μm); E, length:diameter ratio of the hydrotheca (HRatio); F, maximum height of hydrothecal cusps (HCMax, μm). Brackets = [number of specimens/colonies measured].	Figure 8. Mean ± standard deviation of morphometric data for Obeliidae. Data for the genus Obelia comprises all species included in this study, except O. geniculata. A, maximum hydrothecal perisarc thickness at margin (PHMa, μm); B, maximum hydrothecal diameter at margin (DHMa, μm); C, length of pedicel (LP, μm); D, length of the hydrotheca (LH, μm); E, length:diameter ratio of the hydrotheca (HRatio); F, maximum height of hydrothecal cusps (HCMax, μm). Brackets = [number of specimens/colonies measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB957330824FA523899FD10.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858169/files/figure.png	https://doi.org/10.5281/zenodo.14858169	Figure 9. Mean ± standard deviation of morphometric data for the lineages identified as Obelia cf. dichotoma. A, total length of the trophosome (TLT, mm); B, length of the hydrotheca (LH, μm); C, length:diameter ratio of the hydrotheca (HRatio); D, maximum height of hydrothecal cusps (HCMax, μm). Brackets = [number of specimens/colonies measured].	Figure 9. Mean ± standard deviation of morphometric data for the lineages identified as Obelia cf. dichotoma. A, total length of the trophosome (TLT, mm); B, length of the hydrotheca (LH, μm); C, length:diameter ratio of the hydrotheca (HRatio); D, maximum height of hydrothecal cusps (HCMax, μm). Brackets = [number of specimens/colonies measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
03AD87EBFFB957330824FA523899FD10.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14858155/files/figure.png	https://doi.org/10.5281/zenodo.14858155	Figure 4. Mean ± standard deviation of morphometric data for Orthopyxis, including a comparison with species of Campanularia (i.e. C. subantarctica, C. hincksii and Campanularia sp.; Supporting Information, Table S1). Morphological variation in O. crenata and O. integra is presented separately for some populations and combined (‘all’), for comparison. Data for specimens of O.crenata from New Zealand, Argentina and Brazil are represented with numbers 1 to 3, respectively. Similarly, data for specimens of O. integra from the Aleutian Islands and Argentina are represented with number 1 and 2, respectively. A, B, maximum perisarc thickness of hydrotheca at medial portion (PHMe, μm); C, length:diameter ratio of hydrotheca (HRatio); D, length of hydrotheca (LH, μm). Brackets = [number of specimens measured].	Figure 4. Mean ± standard deviation of morphometric data for Orthopyxis, including a comparison with species of Campanularia (i.e. C. subantarctica, C. hincksii and Campanularia sp.; Supporting Information, Table S1). Morphological variation in O. crenata and O. integra is presented separately for some populations and combined (‘all’), for comparison. Data for specimens of O.crenata from New Zealand, Argentina and Brazil are represented with numbers 1 to 3, respectively. Similarly, data for specimens of O. integra from the Aleutian Islands and Argentina are represented with number 1 and 2, respectively. A, B, maximum perisarc thickness of hydrotheca at medial portion (PHMe, μm); C, length:diameter ratio of hydrotheca (HRatio); D, length of hydrotheca (LH, μm). Brackets = [number of specimens measured].	2020-10-31	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C		Zenodo	biologists	Cunha, Amanda F;Collins, Allen G;Marques, Antonio C			
