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,^. 109. Upper surface, natural size. 



b. 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. 

 t). 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, b. Ditto ditto magnified four times. 



6 a, b. Ditto ditto magnified four times. 



These ossicles were collected from the Bradford clny. 



