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Description: | Ceratodus was a lungfish, which means that it had lungs, as well as gills, unlike other fish. In this fossil, the tooth of Ceratodus is the very shiny dark object. The tooth is attached to a piece of rock (the dull, pale grey part). Modern lungfish don't have stomachs, so they chew their food and then regurgitate it before finally swallowing it. | 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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