Cleal, Christopher J., An introduction to plant fossils / Christopher J. Cleal, Barry A. Thomas. - Cambridge, UK ; New York : Cambridge University Press, 2009. - viii, 237 p. : ill., maps ; ISBN: 9780521887151 (hbk.) 9780521715126 (pbk.) Subjects--Topical Terms: Plants, Fossil. LC Class. No.: QE905 / .C54 2009