14 THE LEWIS BROOKS MUSEUM. 



TERTIARY PERIOD. 



The plants are shown by a great variety of leaves, by 

 silicified and bitumiaized wood, and by fruits. The inver- 

 tebrates are headed by over 100 species of foraminifera, (en- 

 larged models) ana number over 600 species. They are 

 chiefly gasteropod and lamellibranch shells. Of fishes there 

 are many beautifully preserved entire specimens. There are 

 shark's teeth from many localities. The reptiles are repre- 

 sented by crocodiles, frogs and tortoises. The restored 

 carapace of colossocheljs measures nine feet in length. 

 Birds are indicated by the eggs. 



The mammalian series is of great interest. A few of 

 the more important forms only can be named. We have 

 zeuglodon, halitherium (entire skeleton), mastodon, elephas, 

 (skull and tusks of E. G-anesa), dinotherium (head and fe- 

 mur), paleotherium, rhinoceros, hipparion, equus, ancbithe- 

 rium, sus, oredon, byaenodon, felis, driopithecus, sivathe- 

 rium, &c, &c. 



PLEISTOCENE PERIOD. 



The plants are represented by forms similar to those 

 now living. The invertebrates are well preserved and spe- 

 cifically identified with modern forms. The fish remains 

 are chiefly shark's teeth. Birds are represented by dodo, 

 epiornis (eggs) and palapteryx. The mammals approxi- 

 mate to living forms but are specifically distinct. The 

 more noteworthy forms represented are mastodon (skulls, 

 teerii and tusks), elephas (jaws and teeth), a complete resto- 

 ration (life size) of the E. primigeneus or mammoth, giving 

 all the characters of the animal, megaceros or Irish elk (en- 

 tire skeleton), glyptodon, (carapace, tail, &c.,) cast of life 

 size, machairodus, bos, bootherium, hippotamus, hyaena, 

 castoroides, nototherium, diprotodon, megalonyx, mylodon, 

 megatherium, (cast life size) sus, gulo, &c, casts of the 

 Engis and Neanderthal skulls, and of the G-uadaloupe skele- 

 ton, &c, &c. 



