Jaws, Teeth of Earliest Bony Fish Discovered

Publication: National Geographic News   Date: August 1, 2007   View Article

Fossils of sardine-size fish that swam in ancient oceans are the earliest examples of vertebrates with teeth that grow from their jawbones, according to new a new study.

The fish, which lived 420 million years ago, are a “very modest” beginning for the jaw-and-tooth pattern widespread in nature today, said study co-author Philippe Janvier, a paleontologist at the National Museum of Natural History in Paris, France.

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