L'Era Paleozoica    by Giancarlo Varnier
Price: $3.00 USD. 13490 words. Language: Italian. Published by ALVIS International Editions  on March 13, 2012. Nonfiction » Science and Nature » Earth sciences.
Il nome Paleozoico ("vita antica"), deriva dal fatto che, in passato, essa era considerata la prima era geologica, coincidente con la comparsa dei primi esseri viventi. Tuttavia, la scoperta di rocce più antiche contenenti fossili, appartenenti all'era Precambriana, rende oggi assai discutibile tale definizione. L'era Paleozoica abbraccia un intervallo temporale di 300 milioni di anni.

L'Era Mesozoica    by Giancarlo Varnier
Price: $3.00 USD. 25950 words. Language: Italian. Published by ALVIS International Editions  on March 13, 2012. Nonfiction » Science and Nature » Earth sciences.
L'era Mesozoica o Secondaria, si estende per un periodo che va da 251 a 65 milioni di anni fa. Denominata anche come Età dei Rettili, deriva il nome dal greco mesos, "medio", perché posta a cavallo tra l'era antica (paleozoica) e quella recente (cenozoica) dove si assistette ad una vera e propria esplosione del numero delle specie viventi e si formarono la maggior parte delle rocce sedimentarie.

Neozoic Age    by Giancarlo Varnier
Price: $4.00 USD. 41890 words. Language: English. Published by ALVIS International Editions  on September 24, 2012. Nonfiction » Science and Nature » Anthropology.
The Neozoic or Quaternary Era owes its name to the emergence and spread of man and comes from the greek "new life" should be from 1.8 million years ago until today.In this book we will explore the trails along the path leading to Homo sapiens, we will see what have been, until now, the most important scientific discoveries about the origin of our species with related issues, and much more.

Mesozoic Age    by Giancarlo Varnier
Price: $3.00 USD. 25500 words. Language: English. Published by ALVIS International Editions  on September 24, 2012. Nonfiction » Science and Nature » Paleontology.
The Mesozoic or Secondary Era, extends for a period ranging from 251 to 65 million years ago. Also called as the Age of Reptiles, derives its name from the greek mesos, "middle", because it was placed in between the ancient (Paleozoic) and recent (Cenozoic) where he witnessed a veritable explosion in the number of living species and formed the majority of sedimentary rocks.

Cenozoic Age    by Giancarlo Varnier
Price: $3.00 USD. 23020 words. Language: English. Published by ALVIS International Editions  on September 24, 2012. Nonfiction » Science and Nature » Paleontology.
The Cenozoic or Tertiary Era, derives its name from the greek and means "recent life". It covers the long period of time ranging from 65 to 1.8 million years ago. For the great success of the Mammals, the Cenozoic is also called the Age of Mammals.Birds conquer the heavens, no longer dominated by the flying reptiles. Toward the end of this Age will come out early hominids.

Paleozoic Age    by Giancarlo Varnier
Price: $3.00 USD. 13420 words. Language: English. Published by ALVIS International Editions  on September 24, 2012. Nonfiction » Science and Nature » Geology.
The Palaeozoic or Primary Era spans a period of time ranging from 542 million to 251 million years ago. The name Paleozoic, derives from the fact that, in the past, it was considered the first geological age. The Paleozoic covers a range of about 300 million years, giving rise to many forms of life, until the appearance of thecodonts, commonly believed to be the ancestors of dinosaurs.

America's Ticking Timebomb    by Stevetheblogger
Price: $0.99 USD. 750 words. Language: English. Published on September 10, 2012. Nonfiction » Science and Nature » Paleontology.
The Yellowstone Super-volcano or by its scientific name the Yellowstone Caldera is located in the Yellowstone National Park. The caldera is acutely located in the northwest corner of the park in Wyoming, this is where the vast majority of the park is contained. The size of the Super Volcano measure an astounding 34 by 45 miles and is static even though the tectonic plates move over or under it.