7 ▁is ▁located ▁lower ▁and ▁the ▁che ek te eth ▁vary ▁more ▁in ▁size . ▁ ▁If ▁truly ▁a ▁g ond wan ath ere , ▁Gal ul ather ium ▁extends ▁the ▁known ▁ge ographic ▁range ▁of ▁the ▁group ▁to ▁another ▁part ▁of ▁G ond w ana , ▁the ▁African ▁main land . ▁The ▁uncertain ▁age ▁of ▁local ity ▁T Z - 0 7 ▁rend ers ▁a ▁precise ▁assess ment ▁of ▁the ▁significance ▁of ▁T N M   0 2 0 6 7 ▁difficult . ▁It ▁may ▁well ▁be ▁older ▁than ▁the ▁oldest ▁previously ▁known ▁g ond wan ath ere , ▁the ▁Camp an ian ▁G ond wan ather ium . ▁It ▁also ▁has ▁imp lications ▁for ▁the ▁hypothesis ▁that ▁Africa ▁was ▁isolated ▁from ▁the ▁rest ▁of ▁G ond w ana ▁from ▁an ▁early ▁date — as ▁early ▁as ▁the ▁early ▁C ret ace ous — and ▁consequ ently ▁had ▁a ▁fa una ▁distinct ▁from ▁the ▁rest ▁of ▁G ond w ana ▁for ▁much ▁of ▁the ▁C ret ace ous , ▁as ▁it ▁may ▁be ▁closely ▁related ▁to ▁the ▁sud amer ic ids ▁of ▁South ▁America , ▁India , ▁Mad agas car , ▁and ▁Ant arct ica , ▁a ▁highly ▁derived ▁group . ▁ ▁Notes ▁ ▁References ▁ ▁Liter ature ▁c ited ▁Gu rov ich , ▁Y . ▁and ▁Beck , ▁R . ▁ 2 0 0 9 . ▁The ▁ph y log en etic ▁aff in ities ▁of ▁the ▁en ig m atic ▁m amm al ian ▁cla de ▁G ond wan ather