''Petraeomyrmex'' is a genus of

extinct species This page features lists of extinct species, organisms that have become extinct, either in the wild or completely disappeared from Earth. In actual theoretical practice, a species not definitely located in the wild in the last fifty years of cur ...

in the subfamily

Dolichoderinae Dolichoderinae is a subfamily of ants, which includes species such as the Argentine ant (''Linepithema humile''), the erratic ant, the odorous house ant, and the cone ant. The subfamily presents a great diversity of species throughout the wor ...

. The genus only contains a single species ''Petraeomyrmex minimus''. The species was once endemic to the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

, 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. PDF
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_References

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References

Dolichoderinae">† Oligocene insects Hymenoptera of North America Fossil taxa described in 1930 Monotypic fossil ant genera {{Dolichoderinae-stub