Download or read book A Revision of the American Eocene Horses written by Walter Granger and published by . This book was released on 1908 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evolution of the Horse written by American Museum of Natural History and published by . This book was released on 1924 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evolution of the Horse written by William Diller Matthew and published by . This book was released on 1924 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revision of the Miocene and Pliocene Equidae of North America written by James Williams Gidley and published by . This book was released on 1907 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In the foregoing revision the lines of comparison and study have been confined principally to characters of the teeth and skull, for the reason that by far the greater number of species of horses have been founded on tooth and skull material not associated with other parts of the skeleton. The expeditions of the last few years however are constantly increasing the collections and adding quantities of more complete material, including many specimens in which teeth and bones of the feet are associated. This class of material will greatly aid in working out more fully than has been done the characters of foot development of horses, and should result in throwing added light on the phyletic relations of the extremely varied groups which seem to have reached their culmination, as regards numbers of genera and species, in the Miocene period. The principal results attained by this study are, first, a better understanding and interpretation of the principal characters shown in the numerous and varied types representing the American Miocene horses; second, the reestablishment and better definition of several of the genera and species proposed by Leidy, the validity of which was questioned by Cope; and third, a reclassification of the entire family of the Equiidae. As at present understood, the fact seems to be fairly well established that there is a considerable phyletic hiatus between the groups of the Equidae as above subdivided, which are as yet not bridged over by intermediate forms. Such a hiatus seems especially marked between the Anchitheriinae and the Protohippinae, while these groups greatly overlap each other in time. So far as indicated by any known species the Anchitheriinae could not well have stood in direct ancestral line to the latter group or to the Equiinae. There seems also to be almost as decided a gap between the Anchitheriinae and the known species of the older group, the Hyracotheriinae. The Equiinae may well have been derived from some species of the Protohippus division of the Protohippinae"--Page 933-934

Download or read book Fossil Horses written by Bruce J. MacFadden and published by Cambridge University Press. This book was released on 1994-06-24 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The horse has frequently been used as a classic example of long-term evolution because it possesses an extensive fossil record. This book synthesizes the large body of data and research relevant to an understanding of fossil horses from perspectives such as biology, geology, paleontology.

Download or read book Eocene Biodiversity written by Gregg F. Gunnell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Initially, this work was designed to document and study the diversification of modern mammalian groups and was quite successful and satisfying. However, as field and laboratory work continued, there began to develop a suspicion that not all of the Eocene story was being told. It became apparent that most fossil samples, especially those from the American West, were derived from similar preservational circumstances and similar depositional settings. A program was initiated to look for other potential sources of fossil samples, either from non-traditional lithologies or from geographic areas that were not typically sampled. As this program of research grew it began to demonstrate that different lithologies and different geographic areas told different stories from those that had been developed based on more typical faunal assemblages. This book is conceived as an introduction to non-traditional Eocene fossils samples, and as a place to document and discuss features of these fossil assemblages that are rare or that come from rarely represented habitats.

Download or read book Written in Stone Icon Science written by Brian Switek and published by Icon Books Ltd. This book was released on 2017-03-02 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Darwin's theory of evolution was for more than a century dogged by a major problem: the evidence proving the connections between the main groups of organisms was nowhere to be found. By the 1970s this absence of 'transitional fossils' was hotly debated; some palaeontologists wondered if these 'missing links' had been so quick that no trace of them was left. However, during the past three decades fossils of walking whales from Pakistan, feathered dinosaurs from China, fish with feet from the Arctic Circle, ape-like humans from Africa, and many more bizarre creatures that fill in crucial gaps in our understanding of evolution have all been unearthed. The first account of the hunt for evolution's 'missing links', Written in Stone shows how these discoveries have revolutionised palaeontology, and explores what its findings might mean for our place on earth.

Download or read book The Rise of Horses written by Jens Lorenz Franzen and published by . This book was released on 2010-02 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accessibly written and featuring full-color photographs and illustrations throughout, The Rise of Horses is the complete chronicle of the evolution of the equids.

Download or read book Guide Leaflet written by American Museum of Natural History and published by . This book was released on 1913 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The American Journal of Science written by and published by . This book was released on 1908 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings American Philosophical Society vol 71 1932 written by and published by American Philosophical Society. This book was released on with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science Guide written by and published by . This book was released on 1921 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Evolution of the Horse written by Patricia J. Wynne and published by Courier Corporation. This book was released on 2008-09-19 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Everyone who loves horses will be amazed to see the many forms these creatures have taken since their first appearance over 50 million years ago. Thirty images range from the very first horse, which was no bigger than a house cat, to the familiar animals of today.

Download or read book Science written by John Michels (Journalist) and published by . This book was released on 1916 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1911-13 contain the Proceedings of the Helminothological Society of Washington, ISSN 0018-0120, 1st-15th meeting.

Download or read book Geologic Literature on North America 1785 1918 written by John Milton Nickles and published by . This book was released on 1923 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geologic Literature on North America 1785 1918 written by John Milton Nickles (paléontologue).) and published by . This book was released on 1923 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The American Journal of Science written by Mrs. Gambold and published by . This book was released on 1908 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: