Insecta - Coleoptera - Helophoridae
Alternative spelling: Mesosperchus
Full reference: A. G. Ponomarenko. 1977. Suborder Adephaga, Polyphaga Incertae Sedis, Infraorder Staphyliniformia, in Mezozoiskie zhestkokryiye. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 161:17-119
Parent taxon: Helophorus according to A. G. Ponomarenko 2014
See also Carpenter 1992, Fikáček et al. 2012, Ponomarenko 1977, Ponomarenko 1985 and Ponomarenko 1992
Sister taxa: none
Subtaxa: Helophorus (Mesosperchus) costalis Helophorus (Mesosperchus) gracilis Helophorus (Mesosperchus) inceptivus Helophorus (Mesosperchus) tarsalis Helophorus (Mesosperchus) yixianus
Ecology:
Distribution:
• Cretaceous of China (1 collection), the Russian Federation (3)
• Jurassic of Mongolia (3), the Russian Federation (7)
Total: 14 collections including 17 occurrences