AGE QF 
THE AGE OF REPTILES: 
if (MESOZOIC). 
~ GEOLOGICAL FORMATIONS and CHARACTERISTIC ANIMALS. 
| THE AGE oF REPTILES PRECEDED THE AGE DURING THIS AGE THE REPTILES APPEARED. 
‘OF MAMMALS, AND IS REPRESENTED IN | FLOURISHED GREATLY. AND DECLINED AT 
paous PARTS OF THE WORLD BY MARINE, | ITS CLOSE TO THEIR PRESENT IMPORTANCE 
SSTUARY AND FRESH-WATER DEPOSITS | THE MAMMALS APPEARED WELL DOWN IN 
DIVIDED INTO THREE GREAT PERIOOS, | THIS AGE BUT REMAINED SMALL AND 
TRIASSIC, JURASSIC AND CRETACEOUS. SCARCE UNTIL ITS END. 
MAMMALS IN LARGE NUMBERS 
| TRUE LIZARDS sn¢ SPHENODONS 
TURTLES 
NUMEROUS BONY FISHES (TELEOSTS) 
CARNIVOROUS DINOSAURS 
HERBIVOROUS DINOSAURS 
LAST PLESIOSAURS 
FIRST SOFT-SHELLED TURTLES 
MODERN TAILED AMPHIBIANS (SAL AMANOERS) 
BIRDS, PROBABLY TOOTHED 
PTERODACTYLS, TOOTHLESS. 
1200) MOSASAURS and PLESIOSAURS 
8700|GIGANTIC MARINE TURTLES 
DOLICNOSAURIAN LIZARDS 
IARI; Ink FIRh, iSidstdermrbge dein PIKES 
ToorHEO rips TOOTMESS PTEROOACTYLS 
|DINOSAURS 
1009} MOSASAURS ani PLESIOSAURS 
3000) LARGE MARINE TURTLES 
‘CRETACEOUS, Be poke BONY FISHES (reLeosrs; SHARKS 
TRUE LIZARDSané DOUCHOSAURS. 
HERBIVORGUS DINDSAURS/imisnono 
pene CARNIVOROUS DINOSAURS (wreacosau 
gees | PTERODACTYLS. TOOTHED on¢ TOOTHLESS 
COMANCHE. MOSASAURS 
: ICHTHYOSAURS and PLESIOSAURS: 
WEALDEN CROCODILES. TURTLES. 
POTOMAC SHARKS and GANOID FISHES 
CHIMAEROID FISHES 
Le CL WW LES. 
u 
Q 
| 
. 
| 
| 
| 
| 
} 
JURASSIC 
SMALL PRIMITIVE MM. ALS 
LONG NOSED CROCODILES (TELEDSAURS) 
ICHTHYOSAURS and PLESIOSAURS 
FIRST, ERBIVORDUS DINOSAURS 
ees Pe ROT AN Nene 
REPTILE: MAMMALS (GROMATHERIUM, 
RE TRITYLODON, MIGAOLESTE 
FIRST CARNIVOROUS DINOSAURS 
LAST LABYRINTHODONTS 
PRIMITIVE CROCODILES (BELODON | 
FIRST TURTLES and PTERODACTYLS 
J|FIRST TELEOST of BONY FISHES 
6000|pLesiosaurs (NOTHOSAURS) 
FIRST ICHTHYOSAURS (M/XOSAURUS) 
hilme's | ONTS 
LARGE AMPHIBIANS (LABY- 
RINTHODONTS) 
FIRST PLESIOSAURS |NOTHOSAURS, 
FIRST REPTILES(COTYLOSAURS, 
| PROGANOSAURS ané PELYCOSAURS| 
|| PRIMITIVE AMPHIBIANS (STEGOCEPHALIA 
SHARKS. LUNG FISHES. 
LANTS 
OAL #4 
CHONDPOSTEAN med CBUSSOPTERYOIN FrsKs 
OF AMPHIBIANS 
‘D £0, 
PRIMITIVE AMPHIBIANS [STEGO- 
CEPHALIA, mosriy maui secies 
PRIMITIVE SHARKS ans LUNG FISHES 
SMONDRISTEA 4d CROSSDPTERYEUN Fisets 
