Hagen-Vorhalle in North Rhine-Westphalia has a reputation as a world-class fossil deposit: Complete 320-million-year-old giant flying insects were discovered there for example. This male of the species Homoioptera vorhallensis, with a body length of 31 centimeters, is the largest specimen of a total of six found. Given the small number of these found, these special ancient neuroptera are even rarer than the famous ancient bird Archaeopteryx.