How old are lizards according to this text:

ABOUT
What is a lizard? Lizards are part of a group of animals known as reptiles. They are most closely related to snakes. In fact, some lizards, called sheltopusiks, look like snakes because they have no legs! Many lizards today resemble the ancient reptiles of the dinosaur era. Their ancestors appeared on Earth over 200 million years ago. 
system
is paath ke anusaar chhipakali kitni puraani hai:

ke bare main
chhipakali kya he?chhipakali jaanwaron ke ek samooh kaa hissaa hai, jinhen sarisrup ke rup main janaa jaataa he.ve sanpon se sabase adhik nikatataa se sambandhit hai.vastav main, kuch chhipakaliyon, jinhen sheltopusik kaha jaataa he, sanpon kii tarah dikhte hai kyonki unke koi pair nahin hai!kai chhipakali aaj dianasor yug ke pracheen sarisrupon se milti julati hai.unke purvaj 200 million se adhik saal pehle prithvi par dikhaai die the.
user
paath vishesh rup se yah nahin bataata he ki chhipakali kitni puraani hai, lekin yah kahata he ki chhipakali ke pehle purvaj 200 million saal pehle dikhaai die the.
assistant
<|system|>
</s>
<|user|>
is paath ke anusaar chhipakali kitni puraani hai:

ke bare main
chhipakali kya he?chhipakali jaanwaron ke ek samooh kaa hissaa hai, jinhen sarisrup ke rup main janaa jaataa he.ve sanpon se sabase adhik nikatataa se sambandhit hai.vastav main, kuch chhipakaliyon, jinhen sheltopusik kaha jaataa he, sanpon kii tarah dikhte hai kyonki unke koi pair nahin hai!kai chhipakali aaj dianasor yug ke pracheen sarisrupon se milti julati hai.unke purvaj 200 million se adhik saal pehle prithvi par dikhaai die the.</s>
<|assistant|>
paath vishesh rup se yah nahin bataata he ki chhipakali kitni puraani hai, lekin yah kahata he ki chhipakali ke pehle purvaj 200 million saal pehle dikhaai die the.</s>
