Data from “Revision of the Australian Ozestheria Schwentner & Richter, 2015 (Crustacea: Branchiopoda: Spinicaudata) fauna, with the description of 27 new species” by Martin Schwentner1 and Manja Hethke2,3 1Naturhistorisches Museum Wien, 1010 Vienna, Austria; martin.schwentner@nhm-wien.ac.at 2LWL-Museum für Naturkunde, Westfälisches Landesmuseum mit Planetarium, Referat Paläontologie, D-48161 Münster, Germany; manja.hethke@lwl.org 3Fachrichtung Paläontologie, Fachbereich Geowissenschaften, Freie Universität Berlin, D-12249, Berlin, Germany File list Supp._file_3.txt Supp._file_3.xlsx AM_Photos.zip AM_SEM.zip MV_Photos.zip MV_SEM.zip NHMW_Photos.zip NHMW_SEM.zip WAM_Photos.zip WAM_SEM.zip Supp._file_5.csv Supp._file_6.csv Supp._file_1.html Supp._file_2.html Specimen_outlines_tps.zip File descriptions Supp._file_3.txt and Supp._file_3: For each studied Ozestheria individual, we provide information on accession number, type specimens, provisional and historic species and lineage names, species provisional lab numbers, sex, locality, GenBank accession numbers, size data (in mm) and ratios, as well as all morphological details that were noted during the taxonomic revision. A graphical representation and description of the linear variables can be found in fig. 2 of Hethke et al. (2023). The morphological notes are those that were taken when the specimens were studied and were not changed thereafter. They may serve to reconstruct the basis for the species descriptions. AM_Photos.zip: Zip archive containing all photographs taken of specimens from the Australian Museum (Sydney). These were the basis for the morphometric analyses as well as for the taxonomic descriptions. AM_SEM.zip: Zip archive containing all SEM images taken of specimens from the Australian Museum (Sydney). These were the basis for the taxonomic descriptions. MV_Photos.zip: Zip archive containing all photographs taken of specimens from the Museums Victoria (Melbourne). These were the basis for the morphometric analyses as well as for the taxonomic descriptions. MV_SEM.zip: Zip archive containing all SEM images taken of specimens from the Museums Victoria (Melbourne). These were the basis for the taxonomic descriptions. NHMW_Photos.zip: Zip archive containing all photographs taken of specimens from the Naturhistorisches Museum Vienna. These were the basis for the morphometric analyses as well as for the taxonomic descriptions. NHMW_SEM.zip: Zip archive containing all SEM images taken of specimens from the Naturhistorisches Museum Vienna. These were the basis for the taxonomic descriptions. WAM_Photos.zip: Zip archive containing all photographs taken of specimens from the Western Australian Museum. These were the basis for the morphometric analyses as well as for the taxonomic descriptions. WAM_SEM.zip: Zip archive containing all SEM images taken of specimens from the Western Australian Museum. These were the basis for the taxonomic descriptions. Supp._file_5.csv and Supp._file_6.csv: The two uploaded csv-files contain shape data on 32 historic type specimens (including 6 drawings) and 654 clam-shrimp individuals from Australia (of which 653 were analysed, individual 91174 of species M was excluded from the analysis as the specimen was not adequately oriented during photography) of the genus Ozestheria. Supp._file_5.csv contains Fourier shape coefficients (shape data) of 248+1 studied clam-shrimp individuals and historic type specimens yielding short condyles. Supp._file_6.csv contains Fourier shape coefficients (shape data) of 497 studied clam-shrimp individuals and historic type specimens yielding long condyles. Species with condyles of intermediate lengths (Ozestheria sp. E and O. sp. N) were included in both analyses. Supp._file_1.html and Supp._file_2.html: We provide two R-scripts as markdown files in html-format, which contain both code and results, including some of the figures featured in the corresponding publication (Schwentner & Hethke 2025). Specimen_outlines_tps.zip: To ensure that our results are reproducible, we provide a zip-file containing the black and white images and tps-files of all studied Ozestheria individuals. Within the zip-file, images and tps-files are sorted by species and historic specimens (A, B, C, D1, D2, D3, E, F, G, H1, H2, I, K, M, N, O, P, Q1, Q2, Q3, Q4, Q5, Q6, Q7, R, S, T, U, W, weeksi (in file “Q”), X1, X2, X3, X4, X5, X7, X8, X9, X10, X11, berneyi, cancellata, dictyon, elliptica, lutraria, mariae, minor, packardi, pellucida, rubra, rufa, sarsii, typica). Each file name refers to the corresponding accession number from the respective museum (e.g. 91437.tps or 91437.jpg = accession number AM P.91437; all accession numbers are given in Supplementray_Table_S1.xlsx). Each tps-file contains 2500 equidistant xy-coordinates that describe the outline of an individual (= shape data for the Fourier shape analysis). The images and .tps files are arranged in the following folders: Type specimens and drawings: berneyi: Image and .tps-files of 1 male syntype (housed in Natural History Museum London; BMNH1929.3.14.2) and the 2 drawings of Estheria berneyi in Gurney (1927). cancellata: Image and .tps-files of the drawing of Estheria packardi var. cancellata in Spencer and Hall (1896). dictyon: Image and .tps-files of 3 of the 8 syntype specimens of Estheria dictyon (MV J53359). elliptica: Image and .tps-files of 1 drawing of Estheria elliptica in Sars (1897). lutraria: Image and .tps-files of 1 drawing of Estheria lutraria in Brady (1886), and image and .tps-files of 2 specimens of E. lutraria in Spencer & Hall (1896). mariae: Image and .tps-files of 5 type specimens of Caenestheriella mariae (WAM C34420). minor: Image and .tps-files of 5 type specimens of Estheria packardi var. minor (MV J54045). packardi: Image and .tps-files of the drawing of Estheria packardi in Brady (1886). pellucida: Image and .tps-files of 1 type specimen of Ozestheria pellucida (WAM C72092). rubra: Image and .tps-files of 1 type specimen of Estheria rubra (AM P.6773). rufa: Image and .tps-files of 2 syntypes of Cyzicus (Estheria) rufa (WAM 7730). sarsii: Image and .tps-files of 1 type specimens of Estheria sarsii (MV J203). typica: Image and .tps-files of 5 type specimens of Estheria packardi var. typica (MV J54046). Genetically delimited Ozestheria species: A: Image and .tps-files of 29 individuals of Ozestheria sp. A (O. jiangi). B: Image and .tps-files of 31 individuals of Ozestheria sp. B (O. minor). C: Image and .tps-files of 73 individuals of Ozestheria sp. C (O. lutraria). D: Image and .tps-files of 31 individuals of Ozestheria sp. D (O. rubra). D1 = 19 individuals, D2 = 12 individuals. D3: Image and .tps-files of 5 individuals of Ozestheria sp. D3 (O. henryae). E: Image and .tps-files of 11 individuals of Ozestheria sp. E (O. fuersichi). F: Image and .tps-files of 5 individuals of Ozestheria sp. F (O. christiani). G: Image and .tps-files of 5 individuals of Ozestheria sp. G (O. richteri). H1: Image and .tps-files of 19 individuals of Ozestheria sp. H1 (O. timmsi). H2: Image and .tps-files of 5 individuals of Ozestheria sp. H2 (O. frederikeae). I: Image and .tps-files of 4 individuals of Ozestheria sp. I (O. sivesae). K: Image and .tps-files of 61 individuals of Ozestheria sp. K (O. setifera). M: Image and .tps-files of 30 individuals of Ozestheria sp. M (O. berneyi). N: Image and .tps-files of 49 individuals of Ozestheria sp. N (O. gemina). O: Image and .tps-files of 26 individuals of Ozestheria sp. O (O. jonnae). P: Image and .tps-files of 17 individuals of Ozestheria sp. P (O. marthae). Q1: Image and .tps-files of 2 individuals of Ozestheria sp. Q1 (species not named). Q2: Image and .tps-files of 4 individuals of Ozestheria sp. Q2 (O. weeksi), same species as O. sp. Q6 and O. weeksi. Q3: Image and .tps-files of 23 individuals of Ozestheria sp. Q3 (O. selmae). Q4: Image and .tps-files of 2 individuals of Ozestheria sp. Q4 (O. radiata). Q5: Image and .tps-files of 42 individuals of Ozestheria sp. Q5 (O. typica). Q6: Image and .tps-files of 3 individuals of Ozestheria sp. Q6 (O. weeksi), same species as O. sp. Q2 and O. weeksi. Q7: Image and .tps-files of 12 individuals of Ozestheria sp. Q7 (O. radiata), same species as O. sp. Q4. R: Image and .tps-files of 4 individuals of Ozestheria sp. R (O. bourkensis). S: Image and .tps-files of 67 individuals of Ozestheria sp. S (O. cancellata). T: Image and .tps-files of 3 individuals of Ozestheria sp. T (O. sarsii). U: Image and .tps-files of 1 individuals of Ozestheria sp. U (O. rincewindi). W: Image and .tps-files of 1 individuals of Ozestheria sp. W (O. barcaldinensis). weeksi: Image and .tps-files of 20 individuals of Ozestheria weeksi, same species as O. sp. Q2 and O. sp. Q6. X1: Image and .tps-files of 14 individuals of Ozestheria sp. X1 (O. matuwa). X2: Image and .tps-files of 3 individuals of Ozestheria sp. X2 (O. ngamurru). X3: Image and .tps-files of 10 individuals of Ozestheria sp. X3 (O. beleriandensis). X4: Image and .tps-files of 5 individuals of Ozestheria sp. X4 (O. carnegiensis). X5: Image and .tps-files of 4 individuals of Ozestheria sp. X5 (O. quinlanae). X7: Image and .tps-files of 1 individuals of Ozestheria sp. X7 (O. glabra). X8: Image and .tps-files of 16 individuals of Ozestheria sp. X8 (O. echidna). X9: Image and .tps-files of 8 individuals of Ozestheria sp. X9 (O. pilbarensis). X10: Image and .tps-files of 4 individuals of Ozestheria sp. X10 (O. rufa). X11: Image and .tps-files of 4 individuals of Ozestheria sp. X11 (O. paralutraria). References Brady G.S. 1886. Notes on freshwater Entomostraca from South Australia. Proc Zool Soc London 1886: 82–93. Gurney R. 1927. Some Australian freshwater Entomostraca reared from dried mud. Proc Zool Soc London 1927: 59–79. Hethke M., Hartmannn K., Alberti M., Kutzner T. & Schwentner M. 2023. Testing the success of palaeontological methods in the delimitation of clam shrimp (Crustacea, Branchiopoda) on extant species. Paleontology 66 (1): e12634. https://doi.org/10.1111/pala.12634 Schwentner & Hethke 2025. Revision of the Australian Ozestheria Schwentner & Richter, 2015 (Crustacea: Branchiopoda: Spinicaudata) fauna, with the description of 27 new species. European Journal of Taxonomy 992: 1-172; https://doi.org/10.5852/ejt.2025.992.2905 . Sars, G.O. 1897. On some West-Australian Entomostraca raised from dried sand. Archiv for Mathematik og Naturvidenskab 19(1): 1–35, pl. 1–4. Spencer W.B. & Hall T.S. 1896. Crustacea. Report on the Work of the Horn Scientific Expedition to Central Australia. II. Zoology. London, and Melbourne 8: 227–248.