Petraeomyrmex is a genus of extinct species in the subfamily Dolichoderinae. The genus only contains a single species Petraeomyrmex minimus. The species was once endemic to the United States in Colorado, which was the location of where the fossil remains were found.Carpenter, F. M. 1930. The fossil ants of North America. Bulletin of the Museum of Comparative Zoology 70:1-66. [1930-01] PDF 123533
References