Isbn: 9781333289218 - sulle condizioni generali degli strati ad avicula contorta, sulla loro speciale costituzione in lombardia e sulla costituzione definitiva del piano ... letta nella seduta del 24 febbrajo, 1861 (4 resultados)

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

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

Condición: Like New. In unused condition, may show some slight shelf wear, but otherwise unread. This title was digitally scanned from a rare, out of print edition, and will have some visual artifacts from that process.

Paperback. Condición: New. Print on Demand. This book chronicles the discovery of the "infraliasic" geologic period through the study of a newly identified rock formation and its unique fossil record. While there had been earlier proposals that the "trias" and "lias" periods were separated by an intermediate stage, this idea was largely untested because the specific defining characteristics were unknown. The author describes how, over many years, dedicated scientists identified this new stratum at multiple sites across Europe and amassed a large collection of fossils from the period. After much debate and refinement, the "infraliasic" period was firmly established. Many fossils discovered during this period were previously unknown to science and helped illuminate the diversity of life during this era. The book includes the author's own research in Lombardy, Italy, which provided a particularly rich trove of fossils and helped solidify the case for the "infraliasic" as a distinct geologic period. The author concludes by asserting that the discovery of this new period deepens understanding of prehistoric life and provides a more detailed picture of the development of species over time. 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.…