How large is a t rex penis?

Tyrannosaurus Rex was up to 40ft (12.4 m) long, about 15 to 20 feet (4.6 to 6 m) tall. The arms were only about 3 feet (1 m) long.
Updated on Monday, February 06 2012 at 08:20AM EST
Collections: tyrannosaurus1 metrearms