The Y-hexomino has order 92. - Karl A. Dahlke (J. Comb. Theory A, 1989)

A heptomino of order 76. - Karl A. Dahlke (J. Comb. Theory A, 1989)

An Octomino of High Order. - Karl A. Dahlke; Solomon W. Golomb; Herbert Taylor (J. Comb. Theory A, 1995)