Figure 4.

Climates and distributions of formiciine ants and modern ants with any caste over 3 cm in length. (a) Mean annual temperature (MAT) values for the largest living ants (box plots: minimum, 25%, median, 75% and maximum values), the Eocene localities where formiciine ants have been recovered and Green River Formation localities comparable with the Farson Fish Beds where T. lubei was found (references for fossil site MAT values as in table 1); (b) ranges of modern ant species with any caste over 3 cm in length (locality references in the electronic supplementary material), equator, tropics of Capricorn and Cancer indicated: South America, Dinoponera spp.; Africa, D. wilverthi; Southeast Asia, C. gigas; eastern Australia, M. brevinoda (in part, see text).