Original sentence: Dinictis was a member of the Nimravid family, also known as "false saber-toothed cats".Fossils were found in Saskatchewan in Canada, and Colorado, Montana, Nebraska, South Dakota, North Dakota, Wyoming, and Oregon in the United States.It had a sleek body  long, short legs  high with only incompletely retractable claws, powerful jaws, and a long tail.It lived in the plains of North America around 40 million years ago in the late Eocene and early Oligocene
Edited sentence: Dinictis is an extinct genus of the family Nimravidae, subfamily Nimravinae endemic to North America during the Eocene-Oligocene epochs (30.8—20.6 mya), existing for approximately.Dinictis was named by Joseph Leidy (1854).Dinictis, also known as "false saber-toothed cats", had a sleek body  long, short legs  high with only incompletely retractable claws, powerful jaws, and a long tail.It lived in the plains of North America and Canada with fossils found in Saskatchewan and Colorado, Montana, Nebraska, South Dakota, North Dakota, Wyoming, and Oregon in the United States.It was assigned to Nimravidae by Leidy (1854); and to Nimravinae by Flynn and Galiano (1982), Bryant (1991) and Martin (1998).Its type is Dinictis felina