Dated phylogenetic studies on the southernmost American buthids (Scorpiones; Buthidae)

OJANGUREN-AFFILASTRO AA; CAJADE R; CECCARELLI FS; ADILARDI RS; MATTONI CI; MOLA LM; RAMIREZ MJ

CABA

Congreso; 35th Annual Meeting of the Willi Hennig Society, XII Reunión Argentina de Cladística y Biogeografia; 2016

Willi Hennig Society

A dated molecular phylogeny of the southernmost American species of family Buthidae based on two nuclear and two mitochondrial genes is presented. Based on this study, analyzed species of subgenus Tityus (Archaeotityus) are neither sister to the remaining species of the genus Tityus, nor are they closely related with the New World microbuthids with decreasing neobothriotaxy. Analyzed species of subgenus Tityus do not form a monophyletic group. We present a hypothesis about the patterns of historical colonization processes of the family Buthidae in southern South America, as well as their probable relation with the geological events that modified the ecological conditions in the region, comparing it with the diversification processes of other epigean groups from the area.