Insecta - Coleoptera - Hydrophilidae
Alternative spelling: Sphaeridiota
Full reference: P. A. Latreille. 1802. Histoire Naturelle, Générale et Particulière des Crustacés et des Insectes, Tome Troisième 1-467
Parent taxon: Hydrophilidae according to C. Y. Cai et al. 2022
See also Bouchard et al. 2011, Lawrence and Newton 1995, Short and Fikáček 2013 and Webster 2016
Sister taxa: Acidocerinae, Alegorius, Aposphinctus, Chaetarthriinae, Creniphilites, Cretosperchus, Enochrinae, Escheria, Escheria bella, Escheria ovalis, Georissinae, Hydrocharis, Hydrochinae, Hydrophilinae, Mesosperchus schultzi, Orphnospercheus, Paraspercheus, Penitus, Philhydrus, Prospercheus, Protochares, Regimbartia, Rygmodinae, Spercheinae, Sphaeridium melanarium, Sternolophus
Subtaxa: Coelostomatini Megasternini Omicrini Protosternini Sphaeridiini
Type: Sphaeridium
Distribution:
• Quaternary of Greenland (1 collection), Japan (7), the Russian Federation (2), Ukraine (1), the United Kingdom (18), United States (3: Washington, Wisconsin)
• Pliocene of Japan (5)
• Miocene of the Russian Federation (1)
• Eocene of Canada (1: British Columbia)
Total: 39 collections including 69 occurrences