10405
" S. populator " may have been able to reach larger size than " S. fatalis " due to a lack of competition in Pleistocene South America ; " S. populator " arrived after the extinction of " Arctotherium angustidens " , one of the largest carnivores ever , and could therefore assume the niche of mega-carnivore .
 location: Pleistocene; location: South America
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: Pleistocene; location: South America