Ammonites from the Buchia Zones in Northwestern California and Southwestern Oregon PDF Download
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Author: Ralph Willard Imlay Publisher: ISBN: Category : Ammonoidea Languages : en Pages : 100
Book Description
Additional title page description: Some Late Jurassic and Early Cretaceous ammonites date the Buchia zones and furnish correlations with the Boreal and Tethyan Realms.
Author: Ralph Willard Imlay Publisher: ISBN: Category : Ammonoidea Languages : en Pages : 100
Book Description
Additional title page description: Some Late Jurassic and Early Cretaceous ammonites date the Buchia zones and furnish correlations with the Boreal and Tethyan Realms.
Author: Gerd Ernst Gerold Westermann Publisher: Cambridge University Press ISBN: 9780521019927 Category : Science Languages : en Pages : 696
Book Description
In this work, 60 specialists come together to discuss the regional occurrences of Jurassic rocks. Not only is this the first comprehensive synthesis of Jurassic geology and palaeontology, but it is in fact the only one of its kind for any geological system.
Author: Christian Klug Publisher: Springer ISBN: 9401796335 Category : Science Languages : en Pages : 615
Book Description
This two-volume work is a testament to the abiding interest and human fascination with ammonites. We offer a new model to explain the morphogenesis of septa and the shell, we explore their habitats by the content of stable isotopes in their shells, we discuss the origin and later evolution of this important clade, and we deliver hypotheses on its demise. The Ammonoidea produced a great number of species that can be used in biostratigraphy and possibly, this is the macrofossil group, which has been used the most for that purpose. Nevertheless, many aspects of their anatomy, mode of life, development or paleobiogeographic distribution are still poorly known. Themes treated are biostratigraphy, paleoecology, paleoenvironment, paleobiogeography, evolution, phylogeny, and ontogeny. Advances such as an explosion of new information about ammonites, new technologies such as isotopic analysis, tomography and virtual paleontology in general, as well as continuous discovery of new fossil finds have given us the opportunity to present a comprehensive and timely "state of the art" compilation. Moreover, it also points the way for future studies to further enhance our understanding of this endlessly fascinating group of organisms.
Author: Ralph Willard Imlay
Author: Ralph Willard Imlay
Author: Ralph Willard Imlay
Author: Gerd Ernst Gerold Westermann
Author: 
Author: David Lawrence Jones
Author: Geological Survey (U.S.)
Author: 
Author: Christian Klug
Author: United States. Superintendent of Documents
Author: United States. Superintendent of Documents