TY  - BOOK
AU  - Halstead,L.B.
TI  - The pattern of vertebrate evolution
T2  - University reviews in biology
SN  - 0050017357
AV  - QE841 .H25 1969
U1  - 596/.03/8 
PY  - 1969///
CY  - Edinburgh
PB  - Oliver & Boyd
KW  - Vertebrates, Fossil
KW  - Local
KW  - Vertebrates
KW  - Evolution
N1  - Includes bibliographical references
ER  -