Chronomyrmex

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Chronomyrmex
Temporal range: Campanian, Late Cretaceous Foremost Formation amber, Alberta, Canada
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Tribe: Leptomyrmecini
Genus: Chronomyrmex
McKellar, Glasier & Engel, 2013
Type species
Chronomyrmex medicinehatensis
Diversity
1 fossil species
(Species Checklist, Species by Country)

Chronomyrmex and Eotapinoma, from Canadian Campanian amber (79-78 Ma), are the only dolichoderines known from the Cretaceous. They were originally placed in the Leptomyrmecini and Tapinomini, respectively, but are now treated as stem-group dolichoderines (Dlussky, 1999; McKellar et al., 2013; Boudinot et al., 2016; Perrichot et al., 2019).

Identification

Distribution

This taxon is known from Foremost Formation amber, Alberta, Canada (Campanian, Late Cretaceous).

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • CHRONOMYRMEX [Dolichoderinae: Leptomyrmecini]
    • Chronomyrmex McKellar, Glasier & Engel, 2013: 586. Type-species: †Chronomyrmex medicinehatensis, by original designation.

Taxonomic history

  • Chronomyrmex in Dolichoderinae, Leptomyrmecini: McKellar, et al. 2013a: 586.
  • Chronomyrmex as stem-taxon to Dolichoderinae: Borysenko, 2017: 19.

References