Reference

Günther Bechly (2000): Two new fossil dragonfly species (Insecta: Odonata: Pananisoptera: Aeschnidiidae and Aktassiidae) from the Solnhofen Lithographic Limestones (Upper Jurassic, Germany) – Stuttgarter Beiträge Naturkunde Serie B [Paläontologie] – 288_B: 1 - 9.