SPENCER : THE YOREDALE AXD MILLSTONE GRIT ROCKS. 393 
Fossils of the 
YORIiDALE AND MlLLSfONE GRIT ROCKS. 
Parish of Halifax Series. 
Orthis ... 
Nacula ... 
Lingula imrallela 
Orhicula nitida 
Pleurotomaria ... 
Edmondia sidcata 
Conidaria 
Encrinites, stems, small sp. ... 
Fish-remains : — 
Acanthodus 
Elonichthi/saitkeiii,who\e fish, scales, &c 
Cladodus, teeth 
Elo7iichthys striolatus, teeth and scales 
Ctenocanthus hyhodus, tooth 
Rhizodus hibberti ? 
Millsto.ne Grit Shales. 
Third Grits. 
P 
