The diagnosis of this species follows Jones (1862) and Anderson (1964). The original proposal of the species, however, is from Duff (1842), although it was not formally described or illustrated in that monograph. Its generic placement was changed to Suchonellina, as proposed by Spizharsky (1937) to accommodate Permo-Triassic darwinulocopine species from Russia. According to Rossetti and Martens (1998), the genus Darwinula presents different valve overlap and general carapace size ratios in comparison to S. globosa. Other than that, some morphological characters attributed to Suchonellina by Molostovskaya (1990) seem to be observable in specimens of the present work: (1) in dorsal view, it is hinted that their hinge displays an arrangement of two marginal, enlarged protuberances separated by a sulcus in the right valve, and (2) the frontal view indicates a shifting upward of the right valve along the overlapping in the ventral margin. Darwinula maanshanensis Hou in Hou et al. (2002) (nom. nov. for the homonym D. longovata Wei in Wei, Li, and Jiang, 1983) also displays the aforementioned morphological characters and is herein synonymized with S. globosa. Specimens of S. globosa were misfigured by Dadlez and Kopik (1963) as Notocythere media excelsa Will, 1953, and vice versa. Specimens identified as A-2 juveniles of D. sarytirmenensis Sharapova in Mandelstam, 1947 (misspelled as Darwinula sarytirmensis) by Kieztke and Lucas (1995) are actually adult individuals of S. globosa, based on the presence of a posterior brood pouch, clearly apparent in dorsal view. Synonymy with the present species is tentative for: (1) Darwinula (102) of Christensen (1962), because it is a similar, but slightly smaller, species; and (2) Darwinula spp. of Sohn and Chatterjee (1979) and (3) D. liulingchuanensis Zhong, 1964 of Wei et al. (1983), due to poor preservation of specimens affecting general layout observations. The size ratios between instars of S. globosa is like that found between ontogenetic stages of D. stevensoni and Vestalenula sp. by Smith and Kamiya (2008). However, Smith et al. (2006) noted that adult males of V. cornelia Smith, Kamiya, and Horne, 2006 are also similar in size ratios to A-1 juveniles. Therefore the present authors, while figuring some of the instars of S. globosa, attributed a doubtful identification to specimens identified as A-1 juveniles.