The distribution of extant species of Trechisibus, Tasmanorites and Nothofagus and the fossil occurrence of A. balli sp. n. and Nothofagus beardmorensis on the Beardmore Glacier shown by red and green stars: information for Trechisibus species (Allegro et al. 2008) and Tasmanorites (Eberhard S, Giachino, PM, 2011). Base image: NOAA Climate.gov https://www.climate.gov/news-features/understanding-climate/polar-opposites-arctic-and-antarctic