  We present our study of bound states of the fourth generation quarks in the
range of 500 to 700 GeV,where we expect binding energies are mainly of Yukawa
origin, with QCD subdominant. Near degeneracy of their masses exhibits a new
"isospin". We find the most interesting is the production of a color octet,
isosinglet vector meson via $q\bar q \to \omega_8$. Its leading decay modes are
$\pi_8^\pm W^\mp$, $\pi_8^0Z^0$, and constituent quark decay, with $q\bar q$
and $t\bar t'$ and $b\bar b'$ subdominant. The color octet, isovector
pseudoscalar $\pi_8$ meson decays via constituent quark decay, or to $Wg$. This
work calls for more detailed study of 4th generation phenomena at LHC.
