Eoformica pinguis

†Eoformica pinguis Temporal range: Lutetian, Middle Eocene K Pa Eo Ol Mi Pl Green River Formation, Colorado, United States
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Uncertain
Genus:	Eoformica
Species:	†E. pinguis
Binomial name
†Eoformica pinguis (Scudder, 1877)
Synonyms
Eoformica eocenica Cockerell, 1921 Lasius terreus Scudder, 1878

Distribution

This taxon was described from Green River Formation, Colorado, United States (Lutetian, Middle Eocene) and is known from several localities in Colorado, Montana, Utah and Wyoming.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• †pinguis. †Liometopum pingue Scudder, 1877a: 742 (m.) U.S.A. (Eocene). Combination in †Eoformica: Carpenter, 1930: 17. Senior synonym of †eocenica: Carpenter, 1930: 17; of †terreus: Dlussky & Rasnitsyn, 2002: 425.
• †terreus. †Lasius terreus Scudder, 1878: 747 (w.) U.S.A. (Eocene). [Carpenter, 1930: 19 has this as incertae sedis in Formicidae.] Junior synonym of †pinguis: Dlussky & Rasnitsyn, 2002: 425.
• †eocenica. †Eoformica eocenica Cockerell, 1921: 38, fig. 9, pl. 8, fig. 11 (m.) U.S.A. (Eocene). Junior synonym of †pinguis: Carpenter, 1930: 17.

References

• Barden, P. 2017. Fossil ants (Hymenoptera: Formicidae): ancient diversity and the rise of modern lineages. Myrmecological News 24: 1-30.
• Carpenter, F. M. 1930. The fossil ants of North America. Bulletin of the Museum of Comparative Zoology 70: 1-66 (page 17, Combination in Eoformica, and senior synonym of eocenica)
• LaPolla, J.S. & Greenwlalt, D.E. 2015. Fossil ants (Hymenoptera: Formicidae) of the Middle Eocene Kishenehn Formation. Sociobiology, 62, 163-174 (doi:10.13102/sociobiology.v62i2.163-174).
• Scudder, S. H. 1877b. The first discovered traces of fossil insects in the American Tertiaries. Bull. U. S. Geol. Geogr. Surv. Territ. 3: 741-762 (page 742, male described)