FIG. 1 in Taxonomic revision of therocephalians (Therapsida: Theriodontia) from the Lower Triassic of Antarctica

FIG. 1. Geology and geography of the Permo-Triassic vertebrate-bearing localities in the vicinity of the Beardmore and Shackleton glaciers, central Transantarctic Mountains. Star indicates position of therocephalian localities (Kitching Ridge, Halfmoon Bluff, Thrinaxodon Col) in the lower Fremouw Formation of Cumulus Hills, Shackleton Glacier region (inset). Gray areas represent exposures of the Buckley Formation; striped areas represent exposures of the Fremouw Formation; hatched areas represent igneous intrusions or metamorphic pre-Devonian basement; dotted areas represent surficial cover. Scale bars are in kilometers. (Map modified from Axsmith et al., 2000 and Collinson et al., 2006.)