Definition: Glyptodontoid is a term used in geology to describe rocks that are composed mainly of organic matter. These rocks are typically found in areas where there has been a high concentration of plant and animal remains, such as forests or wetlands. The term was coined by British geologist John Rennie in the 1930s. Glyptodontoids are characterized by their highly fragmented and irregular shapes, which can be seen in the rock's surface. They may also have
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