Lochkovian
The Lochkovian is one of three faunal stages in the Early Devonian epoch. It lasted from 419.2 ± 3.2 million years ago to 410.8 ± 2.8 million years ago. It marked the beginning of the Devonian Period, and was followed by the Pragian stage. It is named after the village of Lochkov in the Czech Republic, now a part of the city of Prague.
In North America the Lochkovian Stage is represented by Gedinnian or Helderbergian time.Lochkovian life
Agnathans
