Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Palaeontologists have announced the discovery of a 200-million-year-old dinosaur from South Africa after discovering its bones 'hidden' in a university storeroom. The previously unknown species, christened Sefapanosaurus, had been excavated in the 1930s in the Zastron area of South Africa's Free State province. Its bones then ended up among thousands of other fossils at Wits University in Johannesburg, and remained there for some 80 years. The fossil collection at the Evolutionary Studies Institute (ESI) at Wits University is the largest in South Africa. The remains of the Sefapanosaurus had been thought to be those of another South African dinosaur, Aardonyx, but when palaeontologists examined them closer, they realised that it was a completely new species.New dinosaur species found among university bone collectionThe Sefapanosaurus's bones had been excavated in the 1930sBones had since been 'hidden' in South Africa's largest fossil collection 
 Question:The new dinosaur has been named _, after the Sesotho word 'sefapano', meaning 'cross', as one of its most discinctive features is a cross-shaped ankle bone.

Sefapanosaurus