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> Devonian tetrapods
Devonian tetrapods
author: Walter B. Myers/Novapix
reference: t-glb91-03002
Image Size 300 DPI: 25 * 19 cm
A pair of four-limbed, Upper Devonian vertebrate animals of the genus Ichthyostega confront one another 365 million years ago at the edge of a freshwater pond. Basically half fish, half land animal, these tetrapods are each about three feet long. Between them in the water are several marine arthropods known as trilobites. Further beyond in the water is a 12 inch long Bothriolepis. Most of the plant life is varieties of fern, including the tall trees known as Archaeopteris.
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