Eoformica pinguis

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Eoformica pinguis
Temporal range: Lutetian, Middle Eocene 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)

Dlussky & Rasnitsyn 2002-16 Eoformica pinguis.jpg




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.



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.