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Species: †Iridomyrmex florissantius   Carpenter, 1930 

Download Data

Taxonomic History (provided by Barry Bolton, 2020)

Iridomyrmex florissantius Carpenter, 1930 PDF: 50, pl. 2, fig. 4; pl. 10, fig. 7 (q.) U.S.A. (Eocene). AntCat AntWiki HOL

Taxonomic history

Provisionally retained in Iridomyrmex: Shattuck, 1992a PDF: 15.
Unidentifiable taxon, incertae sedis in Iridomyrmex: Heterick & Shattuck, 2011 PDF: 168.
// Distribution


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

Distribution Notes:

Florissant, Colorado, U.S.A.; Late Eocene (ca. 34 Ma).


Holotype MCZC-2872 in Museum of Comparative Zoology, Harvard University, Cambridge, Massachussetts, U.S.A.; paratypes available in Peabody Museum, Yale University, Connecticut; University of Colorado Museum of Natural History, Boulder, Colorado; American Museum of Natural History, New York; Carnegie Museum of Natural History, Pittsburgh, Pennsylvania; other specimen in Natural History Museum, London, U.K.


  • Carpenter F. M. 1930. The fossil ants of North America. Bulletin of the Museum of Comparative Zoology at Harvard University, 70: 1-66.
  • Shattuck S. O. 1992. Review of the dolichoderine ant genus Iridomyrmex Mayr with descriptions of three new genera (Hymenoptera: Formicidae). Journal of the Australian Entomological Society, 31: 13-18.
  • Heterick B. E., Shattuck S. 2011. Revision of the ant genus Iridomyrmex (Hymenoptera: Formicidae). Zootaxa, 2845: 1-175.

Specimen Habitat Summary

Collect Date Range: collected between 1906-01-01 and 1907-01-01

Type specimens: paratype: ucm17011

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