Carboniferous Tetrapods
What are Some Carboniferous Tetrapods?
Carboniferous tetrapods are four-leglike animals that experienced during the Period, between 359 and 299 million years ago. These animals, including amphibians, reptiles, and basal tetrapods, initially evolved about 365 million years ago, at the very end of the Devonian period. They evolved from lobe-finned fish, such as the living coelocanth. The first Carboniferous tetrapods were extremely primitive, and some are called “fishapods” because their characteristics are a mix between fish and tetrapods.
Panderichthys had a mixture of other transitional characteristics, such as strong surrounds supporting its fins, suggesting that it used them to move through shallow mud. It also had a large, tetrapod-like head. Tikaalik was the first fish fossil to demonstrate arm-like skeletal structures including a shoulder, elbow, and wrist. Ichythostega had seven digits while Acanthostega had eight — abnormalities that were rarely repeated again in the history of tetrapod evolution.
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