Unwin David M (68 results)

Hardback. Condition: Good.

hardcover. Condition: Acceptable. The dust jacket is in rough shape, shows significant wear. Fast shipping and order satisfaction guaranteed. A portion of your purchase benefits Non-Profit Organizations, First Aid and Fire Stations.

Condition: very_good. Book is in very good condition. Clean with little to no signs of wear or markings highlights.

Hardback. Condition: Good.

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Hardcover. Condition: Fair. No Jacket. Missing dust jacket; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Condition: Very Good. No Jacket. Former library book; May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condition: Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Condition: acceptable. Fairly worn, but readable and intact. If applicable: Dust jacket, disc or access code may not be included.

Hardcover. Condition: Very Good.

paperback. Condition: Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Paperback. Condition: Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Paperback. Condition: Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Condition: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Hardcover. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

No Binding. Condition: Good. ORIGINAL 1988 Article, disbound from journal; no covers; light creasing of edges; o/w in good condition. Journal.

No Binding. Condition: Good. ORIGINAL 1994 Article, disbound from journal; no covers; light creasing of edges of leaves; o/w in good condition. Journal.

No Binding. Condition: Very Good. ORIGINAL 1997 Article, disbound from journal; no covers; in very good condition. Journal.

Condition: good. A copy that has been read, remains in good condition. All pages are intact, and the cover is intact. The spine and cover show signs of wear. Pages can include notes and highlighting and show signs of wear, and the copy can include "From the library of" labels or previous owner inscriptions. 100% GUARANTEE! Shipped with delivery confirmation, if you're not satisfied with purchase please return item! Ships via media mail.…

No Binding. Condition: Very Good. ORIGINAL1990 reprint/offprint of journal article; no covers issued; in very good condition. Journal.

Condition: Good. 1st Edition. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Hardcover. Condition: Very Good. 1st Edition. GIFT QUALITY as pictured A First Edition like new hardcover in a like new dust jacket unread clean pages.

Hardcover. Condition: Very Good. Dust Jacket Condition: Near Fine. 1st Edition. 352 P., Includes Table Of Contents, Appendix: List Of Valid Pretosaut Species, Notes And Sources, Bibliography, Acknowledgments, And Index. Big Picture-Book About The Pterosaurs And Other Dinosaurs - Real Science- Different Forms Of The Pterosaur Family. …

Paperback. Condition: Very Good. Unmarked text. Previous owner's name inside cover. Corner crease on front cover. 256p. Measures 6.5x9.5 inches. Index. Covers spatial analysis procedures, spatial integration issues, and spatial dynamic modeling.

Hard Back. Condition: Fine. Dust Jacket Condition: Fine. First Printing. 345 Pages Indexed. There is a previous owner's name label on the front endpaper. Here is the first complete portrait of the legendary flying dragons of deep time the pterosaurs designed for non-specialists, yet founded on the real science of these bizarre creatures. Presented lucidly and accessibly by one of the world s leading experts, David Unwin's book is built on a mountain of new fossil discoveries and the latest research. About 220 millions years ago, a group of reptiles took to the Earth s vast and open skies. No longer tethered to the ground, the earliest pterosaurs evolved into a multitude of diverse forms, spread around the globe, and ruled the skies until they went extinct along with the dinosaurs about 65 millions years ago, rarely leaving fossils as a record of their existence. What they did leave was a mystery for paleontologists to solve; an enigma so difficult to crack that it took centuries of false starts and missteps before the path to a true understanding of pterosaurs was uncovered. Now, an understanding of the fundamental nature of these strange creatures is finally possible. In the last 15 years, stunning new fossil finds and significant advances in technology have led to a breakthrough in our knowledge of pterosaurs. New fossils of the earliest species were discovered in Italy, a remarkably well-preserved and complete wing was found in Central Asia, and, most extraordinarily, a pterosaur embryo inside an egg was unearthed in China. CAT scanning has let researchers glimpse inside pterosaur skulls and construct three-dimensional images of their bodies from crushed bones, and modern techniques for analyzing relationships between species have revealed surprising insights into the evolution of the group. Drawing on these and other advances, David Unwin, caretaker of Archaeopteryx and curator at the Museum of Natural History in Berlin, paints pterosaurs and their world more vividly than has previously been possible. He eloquently reconstructs their biology and behavior. Pterosaurs weren't scaly like dinosaurs, but hairy; most were brightly colored and adorned with remarkable head crests; they were excellent fliers with physiologically sophisticated wings; they walked on all fours; and varied in size from eight inches to forty feet in wingspan. He shows how they lived their lives, raised their young, and interacted with the different environments of Mesozoic Earth. Then, building on his thorough examination of their anatomy and lifestyle, and using the powerful technique of cladistic analysis, Unwin unravels the evolutionary history of pterosaurs and establishes their place in the one great tree of life. Packed with 95 color and 30 black and white illustrations including 10 full-page original color paintings that are scientific recreations of different pterosaur species. This book takes readers on an wondrous expedition back through the lost world of the Earth's deep past.…

Hardcover. Condition: Fine. Dust Jacket Condition: Fine. 1st Edition. Fine copy in hardcover with fine jacket.

Hardcover. Condition: As New. Dust Jacket Condition: As New. 1st Edition. GIFT QUALITY as pictured a like-new hardcover, bumped edge in a like new dust jacket spots of wear at edges unread.

Hardcover. Condition: Fine. Dust Jacket Condition: Very Good. 1st Edition. There is very, very light wear on the spine tips and cover corners of the dust jacket. The book is clean, bright & unmarked. Like new. States: "First Printing". $39.95 on the flap.