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On the fossil foot-marks in the red sandstone of Pottsville, Pennsylvania / by Isaac Lea

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By: Lea, Isaac, - American Philosophical Society.

Publication info: Philadelphia, Printed for the author, 1852

Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

Subjects: Dinosaurs Footprints, Fossil Paleontology Pennsylvania Pottsville
On the fossil foot-marks in the red sandstone of Pottsville, Pennsylvania

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By: Lea, Isaac, - American Philosophical Society.

Publication info: Philadelphia, Printed for the author, 1852

Holding Institution: Smithsonian Libraries and Archives

Subjects: Footprints, Fossil Paleontology Pennsylvania Pottsville

BHL Collections: Unearthed! Smithsonian Libraries' Paleo Collection