Stenamma berendti

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Stenamma berendti is an extinct ant species known only from fossil specimens preserved in Baltic amber dating to the Late Eocene epoch, approximately 44-49 million years ago . This species was originally described as Aphaenogaster berendti by Mayr in 1868 and later transferred to the genus Stenamma by Wheeler in 1915 . The only known specimens are male ants preserved in amber, with no worker or queen castes documented in the fossil record . The species was found across multiple Baltic amber deposits including the Gulf of Gdańsk, Bitterfeld, Jutland, and Rovno amber sites . As a fossil species, Stenamma berendti has been extinct for tens of millions of years and no living colonies exist anywhere on Earth.