Buta, Ronald James. <br/><br/>
Footprints in stone :  fossil traces of coal-age tetrapods / 
Ronald J. Buta and David C. Kopaska-Merkel ; forward by Dana J. Ehret. 
 - Tuscaloosa :  The University of Alabama Press,  (c)2016. 
 - 1 online resource 
<br/><br/>Includes bibliographies and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9780817389567 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic.<br/>Geology, Stratigraphic--Pennsylvanian.<br/>Footprints, Fossil--Alabama.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic Books.
<br/><br/><label>LC Class. No.: </label>QE845  / .F668 2016