Radchenko, A. G.; Perkovsky, E. E. 2021. Wheeler's dilemma revisited: first Oecophylla–Lasius syninclusion and other ants syninclusions in the Bitterfeld amber (late Eocene). Invertebrate Zoology 18 (1):47-65.
10.15298/invert-zool.18.1.05 PDF
Notes: Age of Bitterfeld amber remains equivocal between late Eocene and Oligocene |