WALTER MYERS / SCIENCE PHOTO LIBRARY WALTER MYERS / SCIENCE PHOTO LIBRARY
Prehistoric life. Computer artwork of giant Meganeura fluttering between Calamites and Asterophyllites plants during the Carboniferous period (354-290 million years ago). Giant Meganeura are related to present-day dragonflies. Calamites and Asterophyllites are related to today's horsetails, though they grew much larger.
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