Original sentence: Tomarctus ("cutting bear") is an extinct canid of the subfamily Borophaginae which inhabited most of North America during the late Early Miocene subepoch (23 Mya) to the Early Barstovian age of the Middle Miocene subepoch (16 Mya)
Edited sentence: The first specimen was estimated to weigh 17.9 kg (39.4 lbs).The second specimen was estimated to weigh 16.4 kg (36.1 lbs).Tomarctus ("cutting bear") is an extinct canid of the subfamily Borophaginae which inhabited most of North America during the late Early Miocene subepoch to the Early Barstovian age of the Middle Miocene subepoch (23—16 mya).Two specimens were examined by Legendre and Roth for body mass