PLATE 11. 



Uraster carinatus, Wright. 

 From the Marlstone. 



Fig. 



1. Uraster carinatus, Wright, p. 101. Upper surface, natural size. 



GoNiASTER Hamptonensis, Wright. 



From the Great Oolite. 



2 a. Goniaster Hamptonensis, Wright, p. 109. Upper surface, natural size. 



h. Lateral view of the same specimen, showing the dorsal and ventral marginal plates, 

 natural size. 



From the Inferior Oolite. 

 Goniaster obtusus, Wright. 



3 a. Goniaster obtusus, Wright, p. 108. Upper surface of a ray, natural size. 

 h. Under surface of the same ray. 



c. Lateral view of the same, both natural size. 



4 a, b. Marginal ossicles from an unknown Star-fish, magnified four times. 



5 a, h. Ditto ditto magnified four times. 



6 a, b. Ditto ditto magnified four times. 



These ossicles were collected from the Bradford clay. 



