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RTAntarctica
 Cambrian
 Neoproterozoic
 Ordovician
 orogeny
 Pan-African Orogeny
 Queen Maud Land
 tectonics
 Victoria Land
SN?Cambrian-Ordovician. May have begun in the Neoproterozoic. In Transantarctic Mountains, S Victoria Land and Queen Maud Land, Antarctica. Indexed with ages as applicable. Added to Thesaurus in 1995.