Fossilised alga

Fossilised alga

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Credit: MICHAEL ABBEY/SCIENCE PHOTO LIBRARY

Caption: Fossilised algal spore. Light micrograph of the fossilised spore or cyst of Tasmanites sp., a type of marine green alga. This specimen is from a shale, a type of sedimentary rock that is largely composed of clay, which was laid down during the Devonian period (395-345 million years ago). The shale is from Kentucky, USA. Darkfield illumination. Magnification: x50 at 35mm size.

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Keywords: algae, algal, american, botany, cyst, darkfield illumination, devonian shale, fossil, fossilised plant, fossils, kentucky, light micrograph, marine, palaeobotany, palaeontology, paleontology, plant, plants, spore, tasmanites sp., united states, usa

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