28551
If so , this means the protostome and deuterostome lineages must have split some time before " Kimberella " appeared - at least , and hence well before the start of the Cambrian .
 Kimberella, Cambrian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kimberella, Cambrian