583
Terror birds and bathornithids occupied carnivorous guilds alongside predatory mammals , and ratites are still fairly successful as mid-sized herbivores ; eogruiids similarly lasted from the Eocene to Pliocene , only becoming extinct very recently after over 20 " million years of co-existence with many mammal groups .
 location: Eocene; location: Pliocene
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: Eocene; location: Pliocene