LIST OF PLATES 
TO FACE PAGE 
Footprints of Dinosaurs. : : : 5 : ; . 44 
Sea-scorpions . - , ; : : ; : : ae 
Skeleton of Ichthyosaurus tenuirostris : : , = son 
Fish-lizards. Lias period . : ; : : : : Ba 
Skeleton of young Plesiosaur 2 ; ; ‘ fat) 
Long-necked Sea-lizard : , : : ; é » §&o 
Amphibians of the Coal-forest and Permian periods. . = O5 
Ptyonius (two species) : : : : ; : : . 100 
Reptiles and an amphibian of the New Red Sandstone period . 105 
(1) Skull of Dicynodon, palatal aspect. (2) Skull of Dicynodon 
Trautschoeldi . ; : ‘ é ‘ : : : = 108 
(1) Skeleton of Inostransevia alexandri. (2) Skull of Inostran- 
sevia alexandri 5 : : : : 4 : : eet 
(1) Model of Pareiasaurus karpinskii (by Prof. Amalitzky). 
(2) Skeleton of Paretasaurus karpinskii . : : ; » sllG 
Model of Naosaurus restored. From Permian strata of Texas . 119 
A large-horned Dinosaur, Ceratosaurus . ; : . 133 
Skeleton of huge carnivorous Dinosaur, Allosaurus  . ‘ » 135 
Models of Laelaps restored ; : : : ; E . 140 
The oldest-known Dinosaur, Anchisaurus. (From North America) 145 
Thigh-bone of a huge Dinosaur, Atlantosaurus . 3 : . 148 
A gigantic Dinosaur, Brontosaurus excelsus , : P Sok 
Hind-leg bones of Diplodocus . . : 4 : : 2 ab2 
Plaster-cast of skeleton of Diplodocus : 5 : : « sop 
