A. Caudal vertebra of Œstocephalus remex Cope. Lateral view. × 4.
B. Caudal vertebra of Ptyonius vinchellianus (?) Cope. Lateral view. × 6.
C. Dorsal vertebra of Ptyonius pectinatus Cope. Lateral view. × 9.
D. Notochordal cones and spinal canal of Thyrsidium fasciculare Cope. × 3.
E. Rib of Molgophis sp. Cope. × 1.75. c=capitulum; t=tuberculum.
F. Vertebra of Molgophis sp. Cope, from ventral side. × 2.
G. Dorsal vertebra of Ptyonius pectinatus Cope. From above. × 8.
H. Dorsal vertebra of Thyrsidium fasciculare Cope, from below. × 2.5.
I. Vertebra of Phlegethontia linearis Cope, from above. × 5.5
J. Rib of Œstocephalus remex Cope, from posterior dorsal region. × 5.