.245
a	Hinge grades in the evolution of crassatellacean bivalves as revealed by permian genera
h	Book
.100
a	BOYD, Donald W.
.005
a	20071206153646
.260
a	New York
b	American Museum Novitates
c	1969
.084
a	594.138 AME
.300
a	52 hlm.: gamb.
b	23 cm.
c	52 hlm.: gamb.; tab; 23 cm.
.336
a	Book