Saurischia�|Theropoda�@�X

Tetanurae�|�C

�@�iCoelurosauria�A�j

Tyrannosauroidea

�@ " Alectra's lizard "

Alectrosaurus olseni (Albertosaurus olseni) Naming Person....C.W.Gilmore /1933 Tyrannosauridae Late Cretaceous /Mongolia(China) 5m long / 500kg?

�@(c) 1997 M.Shiraishi All Rights Reserved