The Mesozoic Era, known as the age of reptiles, spans from 250 to 66 million years ago when large reptiles like dinosaurs dominated land and sea. It is divided into three periods - the Triassic, Jurassic, and Cretaceous - each with different flora and fauna. The Jurassic is considered the golden age of dinosaurs characterized by the largest herbivores and the origin of birds around 150 million years ago.

1. MESOZOIC.
The Mesozoic Era is known as "the
age of reptiles" for being the
dominant group of vertebrates on
land and in the seas. The Mesozoic
spanned from 250 to 66 million
years ago, and during that time the
large reptiles known as dinosaurs
had their heyday.

2. JURASSIC:
CRETACEOUS: TRIASSIC:
The Mesozoic Era is divided into three periods:
Triassic, Jurassic, and Cretaceous. Each of them
with different characteristics, such as flora and
fauna.
The Jurassic Period is
considered the "golden age"
of dinosaurs. This period is
distinguished by the
existence of the largest
herbivores so far known and
because during it,
approximately 150 million
years ago, birds originated.
Los dinosaurios alcanzan
una mayor diversidad en
sus formas,
encontrándose un gran
número de Hadrosaurios
o "picos de pato"
It is the period of
Earth's history that
precedes the time of
the great Jurassic
dinosaurs.