TY  - BOOK
AU  - Colbert,Edwin Harris
AU  - Morales,Michael
TI  - Evolution of the vertebrates: a history of the backboned animals through time 
SN  - 0471850748
AV  - QE841 .C68 1990
U1  - 566 20
PY  - 1991///
CY  - New York
PB  - Wiley-Liss
KW  - Vertebrates, Fossil
KW  - Vertebrates
KW  - Evolution
KW  - Phylogeny
N1  - Includes bibliographical references (p. 439-456) and index
ER  -