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Species: †Archimyrmex rostratus   Cockerell, 1923 

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Taxonomic History (provided by Barry Bolton, 2022)

Archimyrmex rostratus Cockerell, 1923a PDF: 52, figs. a, b (w.) U.S.A. (Green River Formation). AntCat AntWiki HOL

Taxonomic history

// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: United States

Distribution Notes:

Green River Formation, Colorado, U.S.A.; Eocene (40-48 Ma).


Holotype UC-15174 (part) in University of Colorado Museum of Natural History, Boulder, Colorado; and USNM-69617 (counterpart) in U.S. National Museum, Smithsonian Institution, Washington D.C.

Taxonomic Notes:

See also Baroni Urbani, 2008: 5, genus "incertae sedis in Formicidae".


  • Cockerell T.D.A. 1923. The earliest known ponerine ant. The Entomologist, 56: 51-52.
  • Carpenter F.M. 1930. The fossil ants of North America. Bulletin of the Museum of Comparative Zoology at Harvard University, 70: 1-66.
  • Bolton B. 1995. A new general catalogue of the ants of the World. Harvard University Press, Cambridge, Massachusetts.
  • Dlussky G.M., Rasnitsyn A.P. 2002. Ants (Hymenoptera: Formicidae) of Formation Green River and some other Middle Eocene deposits of North America. Russian Entomological Journal, 11(4): 411-436.
  • Dlussky G.M., Perfilieva K.S. 2003. Paleogene ants of the genus Archimyrmex Cockerell, 1923 (Hymenoptera, Formicidae, Myrmeciinae). Paleontological Journal, 37(1): 39-47.
  • Archibald S.B., Cover S.P., Moreau C.S. 2006. Bulldog ants of the Eocene Okanagan Highlands and history of the subfamily (Hymenoptera: Formicidae: Myrmeciinae). Annals of the Entomological Society of America, 99(3): 487-523.
  • Baroni Urbani C. 2008. Orthotaxonomy and parataxonomy of true and presumed bulldog ants (Hymenoptera, Formicidae). Doriana, 8(358): 1-10.

Specimen Habitat Summary

Collect Date Range: collected between 1922-01-01 and 1984-01-01

Type specimens: holotype: ucm15174

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