76 JURASSIC RHYNCHONELLIDS 
DIMENSIONS OF FIGURED SPECIMEN. 
length thickness width 
1°54 cm 0-75 cm I-40 cm 
0-6 
eye) 
anette et Wines 
a 
V 
ty VA ) 
aS 
») 
3:2 
Fic. 27. Transverse serial sections of A. (Echinivlhynchia) loriolt (Rollier). Oxfordian— 
tvansversarium zone. St. Sorlin, Liefnans (Jura), France. (8). 
—— 
