Aphaenogaster longaeva

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Aphaenogaster longaeva is an extinct fossil ant species from the Eocene epoch, known from a single male specimen found in Quesnel, British Columbia, Canada . The classification is uncertain - while originally placed in the genus Aphaenogaster, experts now consider it incertae sedis (uncertain placement) within the subfamily Myrmicinae because the fossil evidence consists only of wing imprints and partial body parts that do not allow definite generic identification . This species has been extinct for approximately 50 million years and cannot be kept in captivity.