†Prionomyrmex gusakovi Radchenko & Perkovsky, 2020: 619, pl. 8, figs. 1, 2, pl.9, figs. 1-4 (w.) RUSSIA (Baltic Amber, Eocene).

Primary type information: Primary type material: holotype worker. Primary type locality: Russia: Kaliningrad Province, Yantarnyi; Late Eocene (Priabonian) Baltic amber. Primary type depository: PIN. Primary type specimen: PIN 964/1319 (CASENT0917648). Secondary type information: Secondary type depositories: GBIH, PIN. Secondary type specimens: GPIH 4993 (CASENT0917646), PIN 964/1320 (CASENT0917649).