A Monograph of West American Pyramidellid Mollusks

A Monograph of West American Pyramidellid Mollusks

Author: William Healey Dall

Publisher:

Published: 1909

Total Pages: 258

ISBN-13:

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The Pyramellidae are a family of mollusks mostly of small size and world-wide distribution. No record of unmistakable Pyramidellidae has been found in the Cretaceous faunas, though such may occur, but they are numerous in the Tertiaries and perhaps most fully represented in the existing faunas.


A Monograph of West American Pyramidellid Mollusks

A Monograph of West American Pyramidellid Mollusks

Author: William Healey Dall

Publisher:

Published: 1909

Total Pages: 330

ISBN-13:

DOWNLOAD EBOOK

The Pyramellidae are a family of mollusks mostly of small size and world-wide distribution. No record of unmistakable Pyramidellidae has been found in the Cretaceous faunas, though such may occur, but they are numerous in the Tertiaries and perhaps most fully represented in the existing faunas.