578
Rhynchosaurs and dicynodonts survived ( at least in some areas ) at least as late as early-mid Norian and late Norian or earliest Rhaetian stages , respectively , and the exact date of their extinction is uncertain .
 location: Rhaetian
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Rhaetian