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Gesomyrmex magnus
| †Gesomyrmex magnus Temporal range: Priabonian, Late Eocene Bolshaya Svetlovodnaya, Sikhote-Alin, Russia | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Gesomyrmecini |
| Genus: | Gesomyrmex |
| Species: | †G. magnus |
| Binomial name | |
| †Gesomyrmex magnus Dlussky, Rasnitsyn & Perfilieva, 2015 | |
Identification
- Body length c. 20 mm.
Gesomyrmex magnus can be safely diagnosed based on its much larger size compared to all other gyne-based taxa, as well as Gesomyrmex hoernesi and extant species, as originally stated by Dlussky et al. (2015) (Aria et al., 2023).
Cephalic morphometrics of gynes for relevant fossil Gesomyrmex species. (a) Head length (HL). (b) Normalized head shape (head length/head width, HRN, squares) and normalized relative eye diameter (eye diameter/head length, HERN, diamonds). Abbreviations: flav., flavescens; germ., germanicus; hoern., hoernesi. (Aria et al., 2023, Fig. 4)
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Distribution
This taxon was described from Bolshaya Svetlovodnaya, Sikhote-Alin, Russia (Priabonian, Late Eocene).
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- †magnus. †Gesomyrmex magnus Dlussky, Rasnitsyn & Perfilieva, 2015: 138, fig. 12 (q.) RUSSIA (Eocene).
Description
References
- Aria, C., Jouault, C., Perrichot, V., Nel, A. 2023. The megathermal ant genus Gesomyrmex (Formicidae: Formicinae), palaeoindicator of wide latitudinal biome homogeneity during the PETM. Geological Magazine, 1–11 (doi:10.1017/s0016756822001248).
- Dlussky, G.M., Rasnitsyn, A.P. & Perfilieva, K.S. 2015. The ants (Hymenoptera: Formicidae) of Bolshaya Svetlovodnaya (Late Eocene of Sikhote-Alin, Russian Far East). Caucasian Entomoloigcal Bulletin, 11, 131-152.