Temporal range: Campanian, Late Cretaceous Foremost Formation amber, Alberta, Canada
While Eotapinoma macalpini is currently placed in the subfamily Dolichoderinae, this placement is uncertain as the species was based on a unique specimen that was only partial or partly visible and its precise affinity remains enigmatic (Perrichot, 2019).
This taxon was described from Foremost Formation amber, Alberta, Canada (Campanian, Late Cretaceous) (Medicine Hat locality).
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- †macalpini. †Eotapinoma macalpini Dlussky, 1999b: 73, fig. 1 (w.) CANADA (Cretaceous).
- Dlussky, G.M. 1999. New ants (Hymenoptera, Formicidae) from Canadian amber [in Russian]. Paleontologicheskii Zhurnal 4: 73-76.
- Dlussky, G.M. 1999. New ants (Hymenoptera, Formicidae) from Canadian amber [in English]. Paleontological Journal 33: 409-412.
- Perrichot, V. 2019. New Cretaceous records and the diversification of crown-group ants (Hymenoptera: Formicidae). 8th International Congress on Fossil Insects, Arthropods & Amber, Santo Domingo, Dominican Republic.