114 
TERTIARY VERTEBRATA OF THE EAYCTM. 
slightly convex facet {t.f.) for the tubercle of the rib. The posterior capitular facets, 
as in the vertebrae in front, are deeply concave and sharply defined. The metapophysial 
])rocess [m.) above referred to is large, and in the following two (9 and 10) vertebrae 
forms a prominent forwardly-projecting point which overhangs the anterior zygapo- 
physes (a.z.). The eleventh thoracic is very similar, but the transverse process merely 
Anterior dorsal vertebra of Mcerithermm : A, from front ; B, from left side. 
flf.z., anterior zygapopbysis ; r./., capitular facet ; m., metapopbysis ; n.sp., neural spine; p.z., posterior 
zygapopbysis ; t.f., tubercular facet, g uat. size. 
Middle dorsal vertebra of Mairltherium : A, from front; B, from left side. 
Letters as in last figure. | nat. size. 
forms a blunt prominence ; the posterior capitular facet is extremely small, and looks 
almost directly backwards, while the anterior is more distinct, and forms a shallow 
concavity below and in front of the transverse process. 
