TORONTO - The convicted ringleader of the so-called Toronto 18 terror group calls the life sentence he was handed "unduly harsh and excessive."

Zakaria Amara has filed an inmate notice of appeal with Ontario's Court of Appeal.

The document, filed this week, signals Amara's intent to appeal his life sentence with no parole eligibility until 2016.

It indicates Amara wishes to have an appeal heard in writing rather than through oral arguments at the court.

The document also indicates Amara is being held in a special handling unit of a maximum-security facility in Sainte-Anne-des-Plaines, Que.

The only ground of appeal listed on the notice of appeal is: "The sentence was unduly harsh and excessive having regard to all of the circumstances of the case."