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Description: | The specimen shows three stems of Pinnularia with fine leaves and with other plant fragments. Although Pinnularia looks like the small modern-day horsetail plant, Carboniferous varieties included trees that grew up to 30m tall and had trunks up to 1m in diameter. They usually formed thickets along the edges of rivers and lakes in the tropical coal forests. Horsetails reproduced from spores that grew in cases (sporangia) arranged in cones attached to the tips of stems. | 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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