| complex evolutionary history of the mexican stoneroller campostoma ornatum girard, 1856 (actinopterygii: cyprinidae). | studies of the phylogeography of mexican species are steadily revealing genetic patterns shared by different species, which will help to unravel the complex biogeographic history of the region. campostoma ornatum is a freshwater fish endemic to montane and semiarid regions in northwest mexico and southern arizona. its wide range of distribution and the previously observed morphological differentiation between populations in different watersheds make this species a useful model to investigate the ... | 2011 | 21639931 |