Proceratium eocenicum

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Proceratium eocenicum is an extinct ant species known only from Eocene Baltic amber, dating back approximately 44-49 million years . Males have been described at 2.2-2.7 mm in body length, with a round head, shifted anterior eyes, and distinctive wing venation . The species has also been identified in Rovno amber, Bitterfeld, Jutland, and Gulf of Gdańsk deposits . It was a tropical ant species that lived during the Eocene when the Baltic region had a warmer, subtropical climate . The genus Proceratium still exists today with living species, but P. eocenicum itself is only known from fossil specimens preserved in amber .