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  1. By: Engel, Michael S. - Ortega-Blanco, Jaime
    Type: Article
    In: ZooKeys
    Volume: 4
    Date: 2008
    Page Range: 55-64
    Publication Info: Pensoft Publishers 2008
    Subjects: Amber  Electrostephaninae  Electrostephanus  Eocene  Hymenoptera  neotype  Stephanidae  Stephanoidea  Stephanomorpha  taxonomy  Tertiary