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Description: | At first glance this fossil looks like a small saw blade in black slate! In fact it is part of the skeleton of an extinct fossil animal called a graptolite. The skeleton has been flattened during the process of fossilisation. When the animal was alive, each 'saw tooth' was the end of a microscopic tube in which a small animal lived. Graptolites lived in the sea, floating near the surface. They fed on microscopic particles which they were able to filter out of the water. | 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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