Capitolo 29
Illustration of The Pterodactyl.--------------
This way we see what a great advance was made in the life during this
period. The forms of the life during the initial phases of this age
it was inferior in this, also that they was every water
kind.<11 > But, before he/she closes, we have a rich and I vary
terrestrial vegetation, and also air-breathing animals.
The class Mammalia to which man belongs, had anybody representative
on the earth during the Paleozoic and spread out time.
We can easily see, from the precedent, as properly this
period has been called that of old forms of life. In imagination us
you/he/she can recall a scene of this the maturity. The air is sultry and flood
of vapors. The ground seems warm and vaporizing. This is a truth
you forest, but we don't see none of the beautiful flowers that us
you associate with to-day of tropical vegetation. In the branches of
the graced tree-ferns, we will look for in vain birds.
They was far still in the future. Neither it was some of there the
you order taller than present of animals. Not a representative solo of
the great class of mammals animated the depths of the forest.
There were fishes the waters but not the fishes of to-day.
Of the true reptiles and disported of their amphibians in swampy
jungles, but they was without importance. Almost the only sound to
breaks the calm, it was the muttering of swamp-loving bugs the,
whistling some wind and the roar of the storms that us
you/he/she can believe well gotten mad with her/it more than the gravity of tropic of
the present.<12>
The time finally came for the dawn of an it was new. Enormous changes
was happening in the geography of both the continents. The
region to the southwest of the Mountains Verdi had lifted.
The Mountains of Alleghany were formed, and the east region of the
River of Mississippi became part of the stable earth of the
continent.<13 > In Europe, almost as the great changes they happened.
The conditions of the life are due to greatly be changed by these
geographical changes. The life-forms bear testimony to this
changed condition. The old forms die away, and you/he/she have succeeded from