Cenozoic Era
The Cenozoic Era enclosed the period of time from the extinction of the dinosaurs 65 million years ago to the present
day, and is divided into two periods: The Tertiary Period, and the Quaternary Period. The era is often called the “Age of Mammals” because mammals thrived and became widespread across the Earth during this era. Birds and flowing plants (angiosperms) also thrived during this era, while reptiles were now only living in a fraction of their former glory. The Earth
developed to the point as we know it today, and several mountain ranges, including the Alps and the Himalayas formed.
The climate of the Cenozoic era varied greatly; the Earth was relatively warm at some times, but the era had also possessed
numerous ice ages. We may currently be living in an intergalactic ice age in fact; which is basically a time period in
between ice ages. In the beginning of the period, the Earth was recovering from the mass extinction at the end of the Mesozoic Era, but the survivors of the extinction thrived, with few competitors or predators. Small mammals eventually evolved into the larger mammals that we recognize today, although many small mammals still obviously exist today. Additionally, this period also marked the evolution of apelike creatures into humans, who now have so much control over the world that the world is now in the mercy of the hands of humans. There has been a recent mass extinction that has just begun a century ago, as more and more species become extinct due to the actions of impetuous and selfish humans. The mass extinction is still continuing today, and could possibly be an extinction similar to those of previous eras if humans do not change their actions.
day, and is divided into two periods: The Tertiary Period, and the Quaternary Period. The era is often called the “Age of Mammals” because mammals thrived and became widespread across the Earth during this era. Birds and flowing plants (angiosperms) also thrived during this era, while reptiles were now only living in a fraction of their former glory. The Earth
developed to the point as we know it today, and several mountain ranges, including the Alps and the Himalayas formed.
The climate of the Cenozoic era varied greatly; the Earth was relatively warm at some times, but the era had also possessed
numerous ice ages. We may currently be living in an intergalactic ice age in fact; which is basically a time period in
between ice ages. In the beginning of the period, the Earth was recovering from the mass extinction at the end of the Mesozoic Era, but the survivors of the extinction thrived, with few competitors or predators. Small mammals eventually evolved into the larger mammals that we recognize today, although many small mammals still obviously exist today. Additionally, this period also marked the evolution of apelike creatures into humans, who now have so much control over the world that the world is now in the mercy of the hands of humans. There has been a recent mass extinction that has just begun a century ago, as more and more species become extinct due to the actions of impetuous and selfish humans. The mass extinction is still continuing today, and could possibly be an extinction similar to those of previous eras if humans do not change their actions.
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