thermosinus thermosinus thermosinus is a gram-negative bacteria genus from the family of acidaminococcaceae. up to now there is only one species of this genus known (thermosinus carboxydivorans). thermosinus scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: acidaminococcaceae genus: thermosinussokolova et al. 2004 type species thermosinus carboxydivorans species t. carboxydivorans