thumb|330x330px|Map of the world at the Carboniferous-Permian boundary (~ 300 million years ago) showing Cathaysia (pink) Cathaysia was a microcontinent or a group of terranes that rifted off Gondwana during the Late Paleozoic. They mostly correspond to the modern territory of China, historically referred to in Europe as Cathay, which was split into the North China and South China blocks.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).