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JMDMT #259 Microfossils of Cyanobacteria in Carbonaceous Meteorites

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Tags: Carbonaceous Cyanobacteria Fossils Life Meteorite

The James M. DuPont Meteorite Collection - mealy, or leathery nature. They are tirm or soft, extremely tough, and impregnated with salts or mucus and easily disrupted when the gelatinous material surrounding them is of slight viscosity. Their forms vary in size from micro- to macroscopic and in shape they occur as spheres, cushions, strata, or cyhnders. The growth habit is frequently centripetal, and depending on the inherent characteristics of the plant and its environment, the adult plant can be a single cell and of less than 1 /x in diameter or a spreading plant of up to 1 m. in extent. They are cosmo- politan in nature and are found chiefly on soil and in water but also in a variety of other habitats wherever moisture, temperature, energy supply (sunlight), /%3EH, biogenic salts,