Placenticeras pseudoplacenta Hyatt 1903
Quite common in the lower Ferron Sandstone beds around the north end of
the
San Rafael Swell. Rare in the
Scaphites cf. S. ferronensis
and
S. cf. S. whitfieldi beds.
Coilopoceras inflatum Cobban and Hook 1980
rare in the
Prionocyclus macombi zone.
