|Friday, October 19, 2012||17A||Period bookended by extinction events||Patrick Berry|
|Monday, January 14, 2008||47A||Arizona's Petrified Forest dates from this period||Robert Dillman|
|Friday, March 16, 2001||17A||Period of the first dinosaurs||Manny Nosowsky|
1 result for TRIASSIC from Variety puzzles.
|December 27, 1998||cryptic||15D||Period of crisis at Mobile (8)||Emily Cox and Henry Rathvon|
1 result for TRIASSIC from older pre-Shortz puzzles.
|Friday, December 4, 1992||37D||Mesozoic Era period||Bert Rosenfield||Maleska|