by Keith Hautala
(Feb. 10, 2014) — A Harvard professor will deliver a special lecture at the University of Kentucky about the earliest forms of life on Earth.
"The Deep History of Life: What Kinds of Life Characterized Earth During the Precambrian?" will be presented by Andrew H. Knoll, of the Harvard University Departments of Organismic and Evolutionary Biology and Earth and Planetary Sciences. Knoll's talk is free and open to the public and will take place starting at 7 p.m. Thursday, Feb. 13, at Memorial Hall. Free parking will be available at Parking Structure No. 2, on Hilltop Avenue.
The Precambrian period refers to the time when only primitive life forms existed on Earth, before about 545 million years ago.
"Fossils of shells, bones, tracks, and trails record a history of animal evolution more than 600 million years in