Expanding the universe of Piroplasmids: morphological detection and phylogenetic positioning of putative novel piroplasmids in black-eared opossums (Didelphis aurita) from southeastern Brazil, with description of "South American Marsupialia Group" of Piroplasmida. - Oliveira ÁFX; Calchi AC; Stocco AV; Stocco NV; Costa AC; Mureb EN; Pires JR; Guimarães A; Raimundo JM; de Almeida Balthazar D; Machado RZ; André MR; et al. (Parasitology research, 2023)