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Download Fossil Nonmarine Ostracoda of the United States by F. M., Jr. Swain PDF

By F. M., Jr. Swain

The geographic and stratigraphic distribution of fossil nonmarine Ostracoda within the usa are summarized during this ebook, through diagnoses of the topic species, references to literature and 34 plates of illustrations.

This paintings indicates the nice range and value of this fascinating classification of organisms that are small bivalved aquatic crustaceans that occupy either marine and nonmarine environments. Many are attribute of estuarine and different tidal habitats, yet just a couple of occupy hypersaline waters. One or types are present in rainy soils, or in leaf or flower cups in tropical rain forests. a number of dwell in caves and others are commensal in gills of fish and different aquatic animals. Micropaleontologists have came across their shells in lots of kinds of sedimentary rocks and feature used them for stratigraphic and paleoenvironmental interpretations.

Their quite quick premiums of evolution have made them helpful in subsurface stratigraphy and their sensitivity to environmental adjustments has supplied a method of spotting diversifications in rock facies. In nonmarine aquatic rocks they're normally the main simply recoverable microfossils, and feature been wide-spread in petroleum exploration, significantly in China, Russia, Brazil and the western United States.

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