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Tytthostonyx is a genus of prehistoric seabird. Found in the much-debated Hornerstown Formation which straddles the Cretaceous–Paleogene boundary 66 million years ago, this animal was apparently closely related to the ancestor of some modern birds, such as Procellariiformes and/or "Pelecaniformes". A single species is placed herein, Tytthostonyx glauconiticus.[1]
| Tytthostonyx Temporal range: Late Cretaceous,
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Procellariiformes |
| Family: | †Tytthostonychidae Olson & Parris, 1987[1] |
| Genus: | †Tytthostonyx Olson & Parris, 1987[1] |
| Species: | †T. glauconiticus
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| Binomial name | |
| †Tytthostonyx glauconiticus Olson & Parris, 1987[1]
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It has been placed into a family of its own, Tytthostonychidae.[1]
References
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