London, The Palaeontographical Society, 1871. 4to (27.0 x 21.2 cm). vi, 115 pp.; four engraved plates with explanatory text leaves, 26 steel-engravings in the text. Contemporary half morocco over pebbled boards. Gilt title on the spine. Olive endpapers. Speckled edges.

One of Richard Owen's fine contributions to the fossils from Mesozoic strata. Most others deal with Reptilia. Several new species are described and illustrated here. Board edges rubbed, especially at the hinges and spine ends. Old stamp on the title page, some scattered, mostly marginal spotting to the plates, the text leaves clean. A very good copy. Nissen ZBI, 3042; not in Wood.