gondwanaland

• 指假想的古代超级大陆，根据板块构造理论，它最终分裂形成了现今的印度、澳大利亚、非洲、南美洲和南极洲。

A proper noun referring to a hypothetical ancient supercontinent that, according to plate tectonic theory, eventually broke apart to form present-day India, Australia, Africa, South America, and Antarctica.

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1. Ancient supercontinentC1formalscientific

   A hypothetical supercontinent that existed during the Paleozoic and early Mesozoic eras, which later broke apart to form the present-day continents of South America, Africa, Antarctica, Australia, and the Indian subcontinent.

   冈瓦纳古陆

   • Gondwanaland began to break up about 180 million years ago.
   • The fossil evidence supports the existence of Gondwanaland.
   • Geologists study the formation and fragmentation of Gondwanaland to understand plate tectonics.