(from the article `amphibian`) ...(†) are known only from fossils.The earliest tetrapods, the labyrinthodont amphibians, are from the Upper Devonian to the Triassic; these fossils include Ichthyostega. Two ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/l/36
Lepospondyls were small, common amphibians with very long, slim bodies (Lepospondyls superficially resembled salamanders or snakes). These extinct insectivores had a long skull with sharp teeth and weak limbs. They lived during the Middle Pennsylvanian (=late Carboniferous) through the late Permian period . Lepospondyls probably lived near the wate...
Found on
http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
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