john cisne (6 resultados)

No Binding. Condición: Very Good. ORIGINAL Articles, disbound from journal; no covers; in very good condition. Signed by Author(s). Journal.

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

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Soft cover. Condición: Very Good. (1981) pp. 95- 142, 7 plates, 27 figs. (Palaeontographica Americana, Vol. 9, No. 53) Paper covers. No names or markings. Some page corners lightly curled, otherwise a clean, unmarked copy. Search my "Trilobites" catalog for more such papers and books.

Paperback. Condición: New. Print on Demand. This book is a comprehensive examination of the anatomy of a trilobite species, *Triarthrus eatoni*, a creature that roamed the Earth during the Ordovician Period. Through meticulous study of over 100 fossilized specimens, the author unveils the intricate details of the trilobite's exoskeleton, its muscular system, and its digestive system. The author utilizes a groundbreaking technique of stereoscopic x-radiography to reveal previously unseen internal structures, challenging existing understandings of trilobite anatomy. The book delves into the complex segmentation of the trilobite body, providing insights into the evolution and development of arthropods. The author examines the limb structure, particularly the three pairs of postoral head limbs, and offers a compelling argument for the existence of a trunk-limb feeding mechanism. The book also explores the trilobite's digestive system, highlighting its J-shaped gut and the specialized muscular foregut, likely used for suction and food processing. By piecing together the intricate puzzle of the trilobite's anatomy, the book offers a remarkable glimpse into the world of ancient arthropods, providing invaluable information for understanding the evolution and diversification of these fascinating creatures. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.