2010/01/01 by Si‐Qin Ge, Frank Friedrich, Rolf G. Beutel · 4 citations
Agricultural and Biological Sciences · Earth and Planetary Sciences · #Coleoptera Taxonomy and Distribution #Fossil Insects in Amber #Scarabaeidae Beetle Taxonomy and Biogeography
paper · doi:10.1163/187631210x537385
openalex publication_date 2010/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Abstract †Haplochelus georissoides was described as the first fossil myxophagan beetle. We re-evaluated the systematic position based on an extensive morphological data set. A clade †Haplochelus+Lepicerus is very strongly supported. Both genera share a number of highly unusual apomorphies. This lineage is more uniform than the myxophagan families Torridincolidae and Hydroscaphidae. Therefore, we synonymize Haplochelidae. Lepiceridae (incl. †Haplochelus) are placed as sister-group of the remaining myxophagan families. An origin of the group in the Jurassic is likely considering the systematic position of Myxophaga and Lepiceridae.