File:A guide to the fossil mammals and birds in the Department of geology and palontology in the British Museum (Natural history) With 6 plates and 88 text-figures (1909) (14568916980).jpg

Identifier: guidetofossilmam00brit (find matches)
Title: A guide to the fossil mammals and birds in the Department of geology and palontology in the British Museum (Natural history) ... With 6 plates and 88 text-figures
Year: 1909 (1900s)
Authors: British Museum (Natural History). Dept. of Geology Woodward, Arthur Smith, 1864-1944
Subjects: Mammals, Fossil Birds, Fossil
Publisher: London : Printed by order of the Trustees (by W. Clowes and sons, limited)
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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Text Appearing Before Image:
racoid (Megalohyrax eocamus), as large as a donkey,are shown from the Upper Eocene of the Fayujn, Egypt(Pier-case 21). Pliohyrax, from the Lower Tliocene ofPikermi (Greece), the Isle of Samos, and ^Maragha (Persia),must have been equally large. Sub-order 7.—Condylarthra.-^^^^■^^s® These are the small primitive five-toed hoofed animals 21 of the Eocene period, which might serve very well for theancestors of all later Ungulata. They occur both in Europeand Xorth America, Init the most satisfactory specimenshave been found in the latter country. Phenacodus (Figs.39,40), of which a plaster cast of a nearly complete skeletonis exhibited in Pier-case 9, is a typical example. Fragmentsof jaws of Condylarthra are also shown in Pier-case 21. Sub-orders 8-10.—Typotheria, Toxodontia^ andLitopterna. Pi6^-<l^ses South America seems to have l)een separated from the Table-case ^^^^ *^^ ^^^ world during the greater part of the Tertiary 11. period, and its indigenous hoofed mammals, commonly
Text Appearing After Image:
50 (iUIDE TO THE FOSSIL MAMMALS AND BIRDS. Pier-cases 20, 21. Table-case 11. Pier-case20. arrauged in three sub-orders, are nearly all different fromany Ibund elsewhere. The South American llamas, deer,peccaries, tapirs, extinct horses and mastodons, of course, arenot indigenous, but passed south over the newly emergedisthmus of Panama or other land-l)ridge at the l)eginning ofthe Pliocene period. Some of the earliest knuwn South American hoofedmammals, such as Ptirothcrium, are very little different fromthe Amblypoda and Condylarthra (jf the northern hemisphere.Ilaster casts of jaws, teeth, and feet of Pyrothcrium fromPatagonia are exhibited in Pier-case 20. The later forms,however, are peculiar in the folding and complication oftheir often persistently-growing teeth ; also in the structure

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