Pal vA ele: 
DINICHTHYS TERRELLI, Newb. 
Fia. 1. Plate forming posterior lateral angle of cranium, natural size. 
Cleveland shale, Sheffield, Ohio. 
DinictHys curtus, Newb. (p. 156). 
2. Anterior ventral plate, natural size. 
Cleveland shale, Cleveland, Ohio. 
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