Download or read book Early Development of the Shoulder Girdle and Sternum in Marsupials Mammalia Metatheria written by Milan Klima and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of the breast-shoulder apparatus in the Marsupialia was inves tigated and compared with the conditions in Monotremata and Placentalia. The results were achieved by the investigation of material comprising altogether 109 histological serial sections of intrauterine embryos, neonates, and pouch young from 11 marsupial species. Additionally, 54 skeletons of subadult and adult marsupials from 25 species were included for comparison. The embryonic states show a strong similarity to the developmental stage of the breast-shoulder apparatus in the monotremes. In contrast, the adult breast-shoulder apparatus generally corresponds to that in placentals. The following elements can be observed in the marsupial breast-shoulder apparatus during embryogenesis: scapula, metacoracoid, procoracoid, first rib, paired sternal elements, unpaired sternal element, and clavicle. All the elements mentioned together form a compact, continuous arch in both the intrauterine embryos and the neonates. In the pouch young, this arch is reduced rather soon after birth, so that a compact connection between the left and the right half of the body no longer exists. All that remains is a loose connection via the clavicle. The metacoracoid becomes the processus coracoideus scapulae. The procoracoid becomes the praeclavium. The unpaired sternal element fuses with the paired sternal element, generating the uniform manubrium sterni. The first rib takes its usual position in the thorax. In the pouch young, the breast shoulder apparatus as a whole already shows all the typical characteristics that can be determined in adults.
Download or read book Early Development of the Shoulder Girdle and Sternum in Marsupials Mammalia written by Milan Klima and published by . This book was released on 1987-12-09 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Echidna written by M. L. Augee and published by CSIRO PUBLISHING. This book was released on 2006 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is based on Echidnas of Australia and New Guinea, first published as part of the Australian Natural History series"--Preface.
Download or read book The Anatomical Record written by Charles Russell Bardeen and published by . This book was released on 1920 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues for 1906- include the proceedings and abstracts of papers of the American Association of Anatomists (formerly the Association of American Anatomists); 1916-60, the proceedings and abstracts of papers of the American Society of Zoologists.
Download or read book Great Transformations in Vertebrate Evolution written by Kenneth P. Dial and published by University of Chicago Press. This book was released on 2015-07-20 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: How did flying birds evolve from running dinosaurs, terrestrial trotting tetrapods evolve from swimming fish, and whales return to swim in the sea? These are some of the great transformations in the 500-million-year history of vertebrate life. And with the aid of new techniques and approaches across a range of fields—work spanning multiple levels of biological organization from DNA sequences to organs and the physiology and ecology of whole organisms—we are now beginning to unravel the confounding evolutionary mysteries contained in the structure, genes, and fossil record of every living species. This book gathers a diverse team of renowned scientists to capture the excitement of these new discoveries in a collection that is both accessible to students and an important contribution to the future of its field. Marshaling a range of disciplines—from paleobiology to phylogenetics, developmental biology, ecology, and evolutionary biology—the contributors attack particular transformations in the head and neck, trunk, appendages such as fins and limbs, and the whole body, as well as offer synthetic perspectives. Illustrated throughout, Great Transformations in Vertebrate Evolution not only reveals the true origins of whales with legs, fish with elbows, wrists, and necks, and feathered dinosaurs, but also the relevance to our lives today of these extraordinary narratives of change.
Download or read book A Monograph on the Structure and Development of the Shoulder Girdle and Sternum in the Vertebrata written by W. Kitchen Parker and published by . This book was released on 1868 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Monograph on the Structure and Development of the Shoulder girdle and Sternum in the Vertebrata written by William Kitchen Parker and published by . This book was released on 1868 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Morphology in Vertebrates written by Hans-Rainer Duncker and published by Fischer Gustav Verlag GmbH & Company KG. This book was released on 1985 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of Anatomy and Physiology Normal and Pathological Human and Comparative written by and published by . This book was released on 1901 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Anatomy and Physiology written by and published by . This book was released on 1901 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the American Museum of Natural History written by Joel Asaph Allen and published by . This book was released on 2009 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises articles on geology, paleontology, mammalogy, ornithology, entomology and anthropology.
Download or read book The American Journal of Anatomy written by and published by . This book was released on 1920 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes 1-5 include Proceedings of the Association of American anatomists (later American Association of Anatomists), 15th-20th session (Dec. 1901/Jan. 1902-Dec. 1905).
Download or read book Rise of the Dragon written by Henry Gee and published by University of Chicago Press. This book was released on 2001-11 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, fossil finds from China have stunned the world, grabbing headlines and changing perceptions with a wealth of new discoveries. Many of these finds were first announced to English speakers in the journal Nature.Rise of the Dragon gathers together sixteen of these original reports, some augmented with commentaries originally published in Nature's "News and Views" section. Perhaps the best known of these new Chinese fossils are the famous feathered dinosaurs from Liaoning Province, which may help end one of the most intense debates in paleontology—whether birds evolved from dinosaurs. But other finds have been just as spectacular, such as the minutely preserved (to the cellular level) animal embryos of the 670 million-year-old Duoshantuo phosphorites, or the world's oldest known fish, from the Chengjiang formation in southwestern Yunnan Province. Rise of the Dragon makes descriptions and detailed discussions of these important finds available in one convenient volume for paleontologists and serious fossil fans.
Download or read book Studies written by Washington University (Saint Louis, Mo.) and published by . This book was released on 1919 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Washington University Studies written by Washington University (Saint Louis, Mo.) and published by . This book was released on 1919 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Mammals Ashore written by Joseph R. Geraci and published by National Aquarium in Baltimore. This book was released on 2005 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.
Download or read book Netherlands Journal of Zoology written by and published by . This book was released on 1990 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
