Zignoichthys
Encyclopedia
Zignoichthys is a genus of prehistoric fish that lived during the early Eocene
and went extinct before the middle portion of that same epoch.
Eocene
The Eocene Epoch, lasting from about 56 to 34 million years ago , is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era. The Eocene spans the time from the end of the Palaeocene Epoch to the beginning of the Oligocene Epoch. The start of the...
and went extinct before the middle portion of that same epoch.