Original sentence: Aclistomycter is an extinct genus of terrestrial herbivore of the family Merycoidodontidae, endemic to North America during the Middle Eocene subepoch (42—39.9 mya) existing for approximately
Edited sentence: Aclistomycter is an extinct genus of terrestrial herbivore of the family Merycoidodontidae, (oreodont) endemic to North America during the Middle Eocene subepoch (42—39.9 mya) existing for approximately