Avatar's Stephen Lang is in talks for the lead role starring opposite Jason O'Mara on Fox's prehistoric drama series Terra Nova, according to Deadline.

Stephen Lang would play the role of Frank Taylor, the charismatic and ruthless leader of the Terra Nova settlement. Alex Graves is set to direct the pilot for the series.

Earlier today, Terra Nova executive producer David Fury parted ways with the Fox pre-historic drama over creative differences. "He was beloved by the producers on the show, but it just didn't work out," a source close to the series said.

Production on Terra Nova, from 20th TV, Chernin Entertainment, Kapital Entertainment and DreamWorks TV, is scheduled to begin in October in Australia. The series will launch in fall 2011 after a preview this coming May.