32- 



THE QUARTERLY REVIEW OF BIOLOGY 



TABLE i 



Geological and geographical distribution of whales 



Archaeoceti 

 Protocetidae : 



Eocetus 



Pappocetus 



Protocetus 



Proteuglodon 



Dorudontidae: 



Dorudon 



Kekenodon 



Phococetus 



Zygorhixa 



Basilosauridae: 



Basilosaurus 



Odontoceti 

 Agorophiidae: 



Agorophius 



Xenorophus 



Squalodontidae : 



Colophonodon . . . . 



tAetasqualodon . . 



Microcetus 



Microsqualodon. . 



Microzeuglodon . . 



Neosqualodon . . . 



Parasqualodon. . . 



Phoberodon 



Prionodelphis . . . 



Prosqualodon 



PJoytisodon 



Saurocetus 



Squalodon 



Trirhizpdon 



Iniidae : 



Anisodelphis 



Hesperocetus . 



Ischyrorhynchus . . 



Pontoplanodes [= 

 Saurodelphis] . 



Proinia 



Ziphiidae: 



Anoplonassa. . . . , 



?A 



E 



A-N 



Au 



E 

 E 

 E 

 Au 

 S 



S-Z 



E 



E 

 E 



E-N 

 E 



N 

 E-N 



N 



Abbreviations: A., Africa; Au., Australia; E., Europe, including Russia; J., Japan; N., North America; S., 

 South America; Z., New Zealand; ?, indicates some uncertainty as to the age or identity; [?], indicates some 

 uncertainty as to family position. 



