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Species: †Lasius peritulus   (Cockerell, 1927) 

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Taxonomic History (provided by Barry Bolton, 2020)

Tetramorium peritulum Cockerell, 1927 PDF: 165 (m.) U.S.A. (Eocene). AntCat AntWiki HOL

Taxonomic history

Combination in Lasius: Carpenter, 1930 PDF: 58.
See also: Wilson, 1955a PDF: 58.
// 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 in Natural History Museum, London, U.K.; allotype in Museum of Comparative Zoology, Harvard University, Cambridge, Massachussetts, U.S.A.; other material available in Peabody Museum, Yale University, New Haven, Connecticut; Princeton University, New Jersey; University of Colorado Museum of Natural History, Boulder, Colorado; Smithsonian Institution, U.S. National Museum, Washington D.C.; American Museum of Natural History, New York; Carnegie Museum of Natural History, Pittsburgh, Pennsylvania.


  • Cockerell T. D. A. 1927. Fossil insects from the Miocene of Colorado. Annals and Magazine of Natural History, 9(19): 161-166.
  • Carpenter F. M. 1930. The fossil ants of North America. Bulletin of the Museum of Comparative Zoology at Harvard University, 70: 1-66.
  • Wilson E. O. 1955. A monographic revision of the ant genus Lasius. Bulletin of the Museum of Comparative Zoology of Harvard College, 113: 1-201.

Specimen Habitat Summary

Collect Date Range: collected between 1906-01-01 and 1926-01-01

Type specimens: holotype: bmnhp26833; paratype: ucm17014a, ucm17014b

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