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Amphibian

en.wikipedia.org/wiki/Amphibian

Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. Modern amphibians .... Ichthyostega was one of the first primitive amphibians, with nostrils and more efficient lungs. It had ...

Ancient Amphibians - EDGE of Existence

www.edgeofexistence.org/amphibian_conservation/ancient_amphibians.php

Most of the distinctive characteristics of living amphibians – such as their ... The closest relatives of the first amphibians were lobe-finned fish related to modern ...

The evolution of amphibians: the conquest of the land | All you need ...

allyouneedisbiology.wordpress.com/2015/05/07/evolution-amphibians/

May 7, 2015 ... Amphibians were the first group of vertebrates to develop limbs and to be able to leave the water to conquer the land. Even if they are seen as ...

Fossil Record of the Amphibia

www.ucmp.berkeley.edu/vertebrates/tetrapods/amphibfr.html

The earliest well-known amphibian, Ichthyostega, was found in Late Devonian deposits in Greenland, dating back about 363 million years. The earliest ...

www.ask.com/youtube?q=First Amphibians&v=AkqK2jdbduQ
Jan 23, 2016 ... The first major groups of amphibians developed in the Devonian period, around 370 million years ago, from lobe-finned fish which were similar ...

When did amphibians first appear on Earth? | Reference.com

www.reference.com/science/did-amphibians-first-appear-earth-ea06109c8a9ccc3b

Amphibians first appeared on Earth during the Devonian period, which was more than 400 million years ago. While this period is most famous for producing an ...

Amphibians - Backyard Nature

www.backyardnature.net/amphibs.htm

The oldest amphibian fossils look like fish with thick, muscular fins. That's because amphibians arose from early fish. The first amphibians lived more in water ...

Reptile and Amphibian Evolution - Michelle Caldwell

www.michellecaldwell.com/linkfiles/scaredcricket/articles/other/evolution.html

Brief Outline of the Evolution of Reptiles and Amphibians part one - The Paleozoic Era. ... The first fishes to develop lungs were the lobe-finned fishes called ...

Geologic Time - EnchantedLearning.com

www.enchantedlearning.com/subjects/Geologictime.html

First tetrapods appear toward the end of the period. First amphibians appear. First sharks, bony fish, and ammonoids. Many coral reefs, brachiopods, crinoids.

amphibian Facts, information, pictures | Encyclopedia.com articles ...

www.encyclopedia.com/topic/amphibian.aspx

Such organisms, capable of life both in water and on land, came to be called amphibians, a name that means "double life." Amphibians were the first vertebrates ...

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300 Million Years of Amphibian Evolution - Dinosaurs - About.com

dinosaurs.about.com

During the Carboniferous period, over 300 million years ago, the first tetrapods evolved features that allowed them to prosper on land as well as in water.

Characteristics and Evolution of Amphibians - Boundless

www.boundless.com

The fossil record provides evidence of the first tetrapods: now-extinct amphibian species dating to nearly 400 million years ago. Evolution of tetrapods from ...

A New Approach to Earth History | 9. The first tetrapods

www.earthhistory.org.uk

Nowhere is this more clearly seen than in the Devonian period when the first amphibians appeared. What we see is orchestrated colonisation, at the very ...