Eotapinoma

†Eotapinoma Temporal range: 79–56 Ma K Pa Eo Ol Mi Pl Campanian (late Cretaceous) to Paleocene
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Dolichoderinae
Genus:	†Eotapinoma Dlussky, 1988
Type species
Eotapinoma gracilis
Diversity
3 fossil species (Species Checklist)

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

Distribution

This taxon is known from Foremost Formation amber, Alberta, Canada (Campanian, Late Cretaceous) and Sakhalin amber, Ukraine (Thanetian, Paleocene).

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• †EOTAPINOMA [incertae sedis in Dolichoderinae]
  • †Eotapinoma Dlussky, 1988: 54. Type-species: †Eotapinoma gracilis, by original designation.

Taxonomic history

• †Eotapinoma in Dolichoderinae, Tapinomini: Dlussky, 1988: 54; Dlussky & Fedoseeva, 1988: 77; in Dolichoderinae: Shattuck, 1994: 91; Bolton, 1994: 26; Bolton, 2003: 88; incertae sedis in Dolichoderinae: Ward, et al. 2010: 362.
• †Eotapinoma as stem-taxon to Dolichoderinae: Borysenko, 2017: 19.
• †Eotapinoma catalogues: Shattuck, 1994: 91; Bolton, 1995b: 188.

References

• Barden, P. 2017. Fossil ants (Hymenoptera: Formicidae): ancient diversity and the rise of modern lineages. Myrmecological News 24: 1-30.
• Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 26, Eotapinoma in Dolichoderinae, Dolichoderini)
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 188, Eotapinoma in Dolichoderinae, Dolichoderini)
• Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 88, Eotapinoma in Dolichoderinae, Dolichoderini)
• Borysenko, L.H. 2017. Description of a new genus of primitive ants from Canadian amber, with the study of relationships between stem- and crown-group ants (Hymenoptera: Formicidae). Insecta Mundi 570: 1–57.
• Cantone, S., Von Zuben, C.J. 2019. The hindwings of ants: A phylogenetic analysis. Psyche: A Journal of Entomology 2019, 1–11 (doi:10.1155/2019/7929717).
• Dlussky, G. M. 1988a. Ants of Sakhalin amber (Paleocene?) Paleontol. Zh. 1988(1 1: 50-61 (page 54, Eotapinoma in Dolichoderinae, Tapinomini)
• Dlussky, G. M.; Fedoseeva, E. B. 1988. Origin and early stages of evolution in ants. Pp. 70-144 in: Ponomarenko, A. G. (ed.) Cretaceous biocenotic crisis and insect evolution. Moskva: Nauka, 232 pp. (page 77, Eotapinoma in Dolichoderinae, Tapinomini)
• Perrichot, V., Salas-Gismondi, R., Antoine, P.-O. 2019. The ant genus Tapinoma Förster (Formicidae: Dolichoderinae) in Miocene amber of Peru. Palaeoentomology 2(6): 585-590 (doi:10.11646/palaeoentomology.2.6.8).
• Shattuck, S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). Univ. Calif. Publ. Entomol. 112:i-xix, 1-241. (page 91, Eotapinoma in Dolichoderinae, Dolichoderini)