Zessin & Brauckmann 2012. A new fossil dragonfly: Paralogobora guentherpetersi gen. nov., sp nov from the Early Permian of Obora, Czech Republic, and and a new genus: Oligomazon gen. nov for Oligotypus makowskii (Meganisoptera: Paralogidae). Libellula Supplement, 12 2012: 237-245