FIG. 28 in Reassessment Of A Historical Collection Of Sauropod Dinosaurs From The Northern Morrison Formation Of Wyoming, With Implications For Sauropod Biogeography

FIG. 28. Caudal vertebrae, chevron, and partial ischium of Neosauropoda indet. CM 312, with original specimen collection tag. Partial anterior caudal vertebra lacking the neural spine in A, posterior; B, right lateral; and C, anterior views. Partial posterior caudal vertebra lacking part of the neural arch in D, dorsal; E, anterior; F, left lateral; G, posterior; and H, ventral views. Partial anterior chevron lacking the distal end of the shaft in I, left lateral; J, posterior; and K, right lateral views. Distal end of right ischium in L, medial; M, dorsal; N, lateral; O, ventral; and P, distal views; proximal toward the top in L–P. Scale bars are different for the four bones. Abbreviations: hc, hemal canal; isa, ischial articular surface; lr, lateral ridge; nar, neural arch; pk, posterior keel; prz, prezygapophysis; tp, transverse process. Photos by Andrew McAfee (A, C–E, G–I, K, L, N–P) and E.T. (B, F, J, M).