2307
The bones were found at approximately the same level as a 231.4 million year old ash layer , indicating it lived during the early Carnian of the Late Triassic .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None