James O. Farlow – författare
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2 produkter
2 produkter
Inbunden, Engelska, 2018
937 kr
Skickas inom 10-15 vardagar
How can the tracks of dinosaurs best be interpreted and used to reconstruct them? In many Mesozoic sedimentary rock formations, fossilized footprints of bipedal, three-toed (tridactyl) dinosaurs are preserved in huge numbers, often with few or no skeletons. Such tracks sometimes provide the only clues to the former presence of dinosaurs, but their interpretation can be challenging: How different in size and shape can footprints be and yet have been made by the same kind of dinosaur? How similar can they be and yet have been made by different kinds of dinosaurs? To what extent can tridactyl dinosaur footprints serve as proxies for the biodiversity of their makers?Profusely illustrated and meticulously researched, Noah's Ravens quantitatively explores a variety of approaches to interpreting the tracks, carefully examining within-species and across-species variability in foot and footprint shape in nonavian dinosaurs and their close living relatives. The results help decipher one of the world's most important assemblages of fossil dinosaur tracks, found in sedimentary rocks deposited in ancient rift valleys of eastern North America. Those often beautifully preserved tracks were among the first studied by paleontologists, and they were initially interpreted as having been made by big birds—one of which was jokingly identified as Noah's legendary raven.
Inbunden, Engelska, 2012
781 kr
Skickas inom 3-6 vardagar
Praise for the first edition:"A gift to serious dinosaur enthusiasts" —Science "The amount of information in [these] pages is amazing. This book should be on the shelves of dinosaur freaks as well as those who need to know more about the paleobiology of extinct animals. It will be an invaluable library reference." —American Reference Books Annual"An excellent encyclopedia that serves as a nice bridge between popular and scholarly dinosaur literature." —Library Journal (starred review)"Copiously illustrated and scrupulously up-to-date . . . the book reveals dinos through the fractious fields that make a study of them." —Publishers Weekly"Stimulating armchair company for cold winter evenings. . . . Best of all, the book treats dinosaurs as intellectual fun." —New Scientist"The book is useful both as a reference and as a browse-and-enjoy compendium." —Natural HistoryWhat do we know about dinosaurs, and how do we know it? How did dinosaurs grow, move, eat, and reproduce? Were they warm-blooded or cold-blooded? How intelligent were they? How are the various groups of dinosaurs related to each other, and to other kinds of living and extinct vertebrates? What can the study of dinosaurs tell us about the process of evolution? And why did typical dinosaurs become extinct? All of these questions, and more, are addressed in the new, expanded, second edition of The Complete Dinosaur. Written by many of the world's leading experts on the "fearfully great" reptiles, the book's 45 chapters cover what we have learned about dinosaurs, from the earliest discoveries of dinosaurs to the most recent controversies. Where scientific contention exists, the editors have let the experts agree to disagree. Copiously illustrated and accessible to all readers from the enthusiastic amateur to the most learned professional paleontologist, The Complete Dinosaur is a feast for serious dinosaur lovers everywhere.