• Dlussky & Rasnitsyn, 2003: 425 (q.m.)
• Combination in †Eoformica: Carpenter, 1930: 17.
• Status as species: Scudder, 1891: 715; Dalla Torre, 1893: 163; Handlirsch, 1907: 870; Carpenter, 1930: 17; Bolton, 1995b: 188; Dlussky & Rasnitsyn, 2003: 425 (redescription); LaPolla & Greenwalt, 2015: 171.
• Senior synonym of †Eoformica eocenica: Carpenter, 1930: 17; Bolton, 1995b: 188; Dlussky & Rasnitsyn, 2003: 425.
• Senior synonym of †Eoformica terreus: Dlussky & Rasnitsyn, 2003: 425.

Junior synonyms

• †Eoformica eocenica Cockerell, 1921
• †Eoformica terreus (Scudder, 1878)
  Obsolete combination(s): †Lasius terreus

Obsolete combinations

• †Liometopum pingue

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Carpenter, F. M. 1930. The fossil ants of North America. Bulletin of the Museum of Comparative Zoology 70:1-66. PDF
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• Dlussky, G. M.; Rasnitsyn, A. P. 2003 ("2002"). Ants (Hymenoptera: Formicidae) of Formation Green River and some other Middle Eocene deposits of North America. Russian Entomological Journal 11:411-436. PDF
• Handlirsch, A. 1907. Die fossilen Insekten und die Phylogenie der rezenten Formen. Ein Handbuch für Paläontologen und Zoologen. Lieferung 6. Leipzig: Wilhelm Engelmann, pp. 801-960.
• LaPolla, J. S.; Greenwalt, D. E. 2015. Fossil ants (Hymenoptera: Formicidae) of the Middle Eocene Kishenehn Formation. Sociobiology 62:163-174. 10.13102/sociobiology.v62i2.163-174 PDF
• Scudder, S. H. 1877b. The first discovered traces of fossil insects in the American Tertiaries. Bulletin of the United States Geological and Geographical Survey of the Territories 3:741-762. PDF
• Scudder, S. H. 1891. Index to the known fossil insects of the world, including myriapods and arachnids. Bulletin of the United States Geological Survey 71:1-744. PDF