_Field Book_
PENNSYLVANIAN PLANT FOSSILS OF ILLINOIS
Charles Collinson
Romayne Skartvedt
_Illinois State Geological Survey
Educational Series 6_
[Illustration: uncaptioned]
STATE OF ILLINOIS
DEPARTMENT OF REGISTRATION AND EDUCATION
First edition 1960
Reprinted 1966
ILLINOIS STATE GEOLOGICAL SURVEY
URBANA ILLINOIS
John C. Frye, Chief
Printed by Authority of State of Illinois, Ch. 127, IRS, Par. 58.25.
_Field Book_
PENNSYLVANIAN PLANT FOSSILS OF ILLINOIS
Charles Collinson
Romayne Skartvedt
[Illustration: uncaptioned]
_Illustrations by Marie E. Litterer_
FOREWORD
[Illustration: Illuminated T]
This field book is intended to guide beginners in their collection and
general classification of plant fossils. It illustrates the plant
fossils most commonly found in Illinois and relates them to the plants
of which they were a part. A list of publications that will furnish more
detailed identification of specimens is included. The book has been
prepared in response to numerous inquiries to the Illinois State
Geological Survey from amateur collectors.
Information has been drawn from numerous sources. The works of Hirmer,
Janssen, Lesquereux, Noé, and Langford have been particularly useful.
We are especially indebted to Dr. Robert M. Kosanke, paleobotanist at
the Illinois State Geological Survey, and Dr. Wilson N. Stewart,
professor of botany of the University of Illinois, for helpful
suggestions and use of their libraries.