PLATE 28 ' 

 Fig. I. Dinichthys? Plate in matrix, outer view; natural size. E 2035, p. 65. 



Fig. 2. Dinichthjdd, sp. indet. Very small juvenile lateral, or "cla\icular," 

 in matrix; outer view. X 2. E 2043, p. 97. 



Fig. 3. Dinichthys newberryi? Postero-ventromsdian. X ;-', E 1986, p. 50. 



Fig. 4. Acanthaspis sp. Detached lateral spine. X 2. E 2013, p. 100. 



254 



