. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. AVES. 47 allelism existing between the monodelphs and didelphs. The original of this fine specimen is in the British Museum. A part of the right lower ramus is wanting. Size, 3 ft. 5 in. x 1 ft. 10 in. Price, mounted. $ No. 182. Nototherium Mitchelli, Owen. Skull and Lower Jaw. This quadruped, which probably rivalled the Ehinoceros in size, manifests pachyder- mal modifications of the marsupial type. It differs from the Diprotodon in the polished surface
. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. AVES. 47 allelism existing between the monodelphs and didelphs. The original of this fine specimen is in the British Museum. A part of the right lower ramus is wanting. Size, 3 ft. 5 in. x 1 ft. 10 in. Price, mounted. $ No. 182. Nototherium Mitchelli, Owen. Skull and Lower Jaw. This quadruped, which probably rivalled the Ehinoceros in size, manifests pachyder- mal modifications of the marsupial type. It differs from the Diprotodon in the polished surface of the enamel as con- trasted with the punctate surface of the teeth of the latter, by the obliquity of the molar ridges, and by procumbent incisors of less relative size. There were three molars and two premolars in each ramus. From the great width of the zygomatic arches, it was formerly called Zygomaturus. This specimen, discover- ed in the alluvial deposits near the Condamine River, Australia, is in the Brit- ish Museum. Size, 20 x 18. Price, mounted, $ No. 183. Thylacoleo carnifex, Owen. Lower Jaw, right ramus. This marsupial carnivore was about the size of the Lion. The fossil was found in the Pleistocene formation of Australia, and. is preserved in the British Museum. Price, $ CLASS II — AVES. The earliest evidences of Birds are footprints on the tidal shore of the Liassic Sea. The fossil bones are much more rare than those of other Vertebrates, excepting, perhaps, in the favored locality of New Zealand. " The powers of flight possessed by most Birds (says Lyell) would ensure them against perishing by numerous casualties to which quadrupeds are exposed during ; The length of time, also, during which the carcase of a Bird may float, exposes it the more to be devoured, and also to the wider dispersion of its remains. The greatest part of ornithic remains yet found are those of land Birds. Certain cylindrical bones from the Stonesfield Oolite,
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectfossils, bookyear1866
