E: 
2 ۴ 
HETEROPODA. 
Snails. (Cari a.) 
| 
| 
| 
| 
Pleurobranchus. | Chiton. 
| 
| 
Helix. Buccinum 
(Lungs.) (Gills. ) 
| | 
3reathing. 
Lamellibranchiata. 
(Clams. Oysters.) 
| 
Be 
Otocardia. 
Terebratula. Lingula. 
| | 
ex m exl | 
Brachiopoda. 
Bryozoa. 
7 
IU. 
Dentalium. 
| 
Gasteropoda, 
| 
TREE `V. 
Two-Gill. Jirds. Pterodactyle. Turtles. 
(Octopus. ) | | TE Snakes. 
| i E Anomodonts. | 
5 P | ^ j 
| Dinosauria. Crocodile. lazards. 
| | | | 
Four-Gill. —— کے‎ ¡ASE | 
(Nautilus.) | 
l Paleosaurus. Proterosaurus. 
| oe = 
| Thecodonts. 
| 
Cephalopoda. Frog. 
(Cuttle-Fish. ) es as TE 
| Triton. Salamander. Cecilia. 
| | 
| | Labyrinthodon. 
| ۱ ۱ 
Pteropoda. Proteus: ! 
(Clio. Hyalza.) God: 3 p m ELS 
] | Archegosaurus. 
کے یج ہا‎ Herring. Suse = Plesiosaurus. 
| ale: 
Zur Lepidosiren. Ichthyosaurus. 
Teliosts. NER Eee ie 
I 
ہ ری‎ Simosaurus. 
Ganoids. 
کو‎ SCOT ME 
Chimeera. 
Lamprey. 
| Sharks. 
! 
Cartilagincus Fishes. 
| 
Membranous Fishes, 
Ascidia. Amphioxus, 
ei 
Tunicata. 
-— 
: i ” ๐ ฝ 030 ไ 
Sar-Warme - " 
