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KaeLyn Townsend

on 24 April 2013

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Transcript of Copy of DEVONIAN TIME PERIOD

419-358 million years ago. DEVONIAN TIME PERIOD Near the end of the Silurian period, until the beginning of the Carboniferous period The earth may have look something like this Most of the land was on the southern hemisphere of the earth Named the "age of the fish" Most inhabitants of this period lived under water. Only plants and very few animals lived above sea level, near the middle of the era. The earth's climate at the time was relatively warm and humid. The tropical climate average was around 80 degrees F. The temperate lands and waters caused for the earth to thrive with life, at least in the middle of the period. Many organisms were adapt to cooler temperatures, so when the Earth began to heat, they died out. This shelled creature is of the Ammonite family, the Ammonitida, able to be told from the shell. It is possibly the first ancestor of octopus and squid. This creature is known as Hynerpeton Bassetti. One of the first four-limbed animals . Most of the organisms that lived, were adapt to humid, watery climates. So when the Earth's heating may have led to the larger extinction of many animals These animals, of the Chondrichthyes family, are believed to be early ancestors of sharks. Limnomis delaneyi is the name of this bug-eyed fish. It was thought to be fairly small, only averaging at 6 cm. It's large eyes may have been linked to sight-feeding, other than actual hunting. Before the animalia It took close to half of the time period, but before the animals got to land, the Earth's surfaces were covered in plants. Archaeopteris Hibernica is sometimes referred to as the "1st modern tree." Otzinachsonia beerboweri
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