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Description: | Stigmaria is the name given to the roots of large, tree like clubmosses that lived in the Carboniferous Coal Measure forests 300 million years ago. The roots are covered by a regular pattern of circular or oval pits, made by rootlets. These plants, which grew up to 40 metres in height, are called Lepidodendron. The upper parts of the trunks have a distinctive diamond shaped pattern covering their surfaces, which is formed where leaves that grew from the surface of the trunk have fallen away, leaving a scar. | License: | http://www.imagine.org.uk/about/copyright/ | Rights holder: | Tyne & Wear Museums | Subjects: | fossils natural world | Source: | Tyne and Wear Imagine | Identifier: | http://www.imagine.org.uk/details/index.... | Go to resource |
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