†Gesomyrmex gallicus Aria et al., 2023: 188, figs. 1-3, S1-S2 (s.w.) FRANCE (Oise amber, Eocene).

Primary type information: Primary type material: holotype minor worker. Primary type locality: France: Oise department, Chevrières, Le Quesnoy farm (in Lower Eocene (Ypresian) amber). Primary type depository: MNHN. Primary type specimen: MNHN.F.A32941. Secondary type information: Secondary type material: 2 paratype minor workers, 1 paratype major worker. Secondary type locality: same as for holotype. Secondary type depository: MNHN. Secondary type specimens: MNHN.F.A32938, MNHN.F.A32939, MNHN.F.A32940.