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Description: | Productids were unusual brachiopod (lamp shells) because they used spines on the outside of their shells to anchor themselves in muddy and sandy sea floors. Most brachiopods have a pedicle (fleshy stalk) to attach themselves to firm sea floors. The spines are fragile and break off the shell easily and are sometimes found as fossils. This specimen shows a collection of spines that have been preserved in mudstone. | 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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