Non-marine Ostracoda (Crustacea) of the Early Cretaceous ‘ Pre-Salt’ sediments of Brazil: An illustrated catalogue of the type specimens of Wicher, Krömmelbein, Krömmelbein & Weber, and Bate Author Bate, Raymond H. ray@globalexplor.com Author Horne, David J. 0000-0002-2148-437X d.j.horne@qmul.ac.uk Author Horne, Sarah E. Author Douglas, Lyndsey l.douglas@vam.ac.uk Author Miller, Giles 0000-0001-9111-2136 g.miller@nhm.ac.uk Author Lord, Alan R. 0000-0002-0008-7746 ray@globalexplor.com text Zootaxa 2022 2022-02-09 5098 1 1 84 journal article 157772 10.11646/zootaxa.5098.1.1 ec802837-a2c4-4955-b15d-118934255664 1175-5326 6036685 26267A94-CD1E-49CF-9F72-C4E5D8149311 Theriosynoecum isoplektum Krömmelbein & Weber, 1971 Fig. 13 , 1a–c and 2a–c 1971 Theriosynoecum isoplektum n. sp. —Krömmelbein & Weber, p. 57–58, pl. 11, figs 48–49. Diagnosis : Carapace in lateral view is an extended rectangle in its basic shape. Main sulcus fairly straight, extending down to more than half carapace height, ending at the central muscle field which protrudes outwards most clearly. Anterior sulcus goes forward of the main sulcus right under the dorsal margin and directed diagonally towards the anterior, approximately half the length of the main sulcus. Between the sulci is a triangular valve-swelling, with the tip directed diagonally towards the posterior and upwards, running downwards in the general vaulting of the valve. Holotype : Carapace ♂ ?, BfB 7825. Paratype : Carapace ♀ ?, BfB 7826. Dimensions: ♂ ? Holotype , length 0.77mm , height 0.41mm , width 0.38mm . Dimensions: ♀ ? Paratype , length 0.72mm , height 0.38mm , width 0.37mm .