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Description: | The two rows of footprints on this slab of red sandstone form a track made by an unidentified animal as it walked across sand. It had five toes on each foot. We don't know where this piece of sandstone came from, but it is probably British, and possibly from the Berwick (Northumberland) area. When the animal walked over soft sand it left an impression of its foot. This impression was then filled by another layer of sand which protected the footprint. As the sand hardened to form sandstone, the footprint became a fossil. Fossils of footprints are called 'trace-fossils' because they are not actually the remains of the animal, but rather the marks it left behind. | 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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