. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. 496 Annals of the Carnegie Museum. about the same throughout its length, but antero-posteriorly it is ex- panded more especially at the proximal end. The internal side of this end presents a triangular slightly concave rugose surface for attachment to the tibia. The antero-superior border is produced into a thin edge which fitted against the cnemial crest of the tibia. On the upper ex- ternal half of the shaft is a slight rugosity which probably served as a muscular attachment. The lower extr
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. 496 Annals of the Carnegie Museum. about the same throughout its length, but antero-posteriorly it is ex- panded more especially at the proximal end. The internal side of this end presents a triangular slightly concave rugose surface for attachment to the tibia. The antero-superior border is produced into a thin edge which fitted against the cnemial crest of the tibia. On the upper ex- ternal half of the shaft is a slight rugosity which probably served as a muscular attachment. The lower extremity of the fibula is suboval in form and extended distally for articulation with the astragulus. Measurements. Greatest length of the fibula, 243 mm. 9^ inches. Greatest breadth proximal end, ^6 " 2^^ " Greatest breadth of distal end, 43 " I^ " Axial Skeleton. T//e Cervicals.—The greater portion of an arch of one of the ante- rior cervicals is all that is preserved of the cervical series. In a general way it resembles the cervical arch of the larger members of this group. The arch was united to the centrum by a well-defined suture. The spine is low and robust, nearly square in cross-section and placed well back. The articulating surfaces of the posterior zygapophyses are expanded. Superiorly they are supported by the postzygapophy - sial" laminse which descend from the ad- jacent corner of the spine. These laminje are strong superiorly but Fig. 7. Anterior cervical of inferiorly form the rather frail posterior Elosaiirus paj-vus. Seen from the right side (No. 566), yi nat- ural size, s., spine; A, trans- verse process, or diapophysis; , anterior zygapophysis ; /.-., posterior zygapophysis ; azL, pre- zygapophysial lamina ; pzL, post- zygaphysial lamina ; kl., horizon- tal lamina;/^/(T., postdiapophysial cavity; sti., suture to wall of the neural canal. There is a deep postzygapophysial cavity.^ The prezyga- pophysial laminae
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