What is "libys"

Libys is a genus of the prehistoric coelacanth lobe-finned fish, an intermediary form between sea and land animals. It belongs to the family of Latimeridae, which is also the family of the living coelacanth, Latimeria. These fishes lived during the Upper Jurassic period ( Kimmeridgian - Tithonian, about 150 to 145 million years ago).