Ptyktoptychion is an extinct genus of chimaeras known from the Early Cretaceous of Australia.[1]
| Ptyktoptychion Temporal range:
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Holocephali |
| Order: | Chimaeriformes |
| Family: | Callorhinchidae |
| Genus: | †Ptyktoptychion Lees, 1986 |
| Species | |
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References
edit- ^ Lees, Tempe A. (1986). "A new chimaeroid Ptyktoptychion tayyogen. Et sp. Nov. (Pisces:Holocephali) from the marine Cretaceous of Queensland". Alcheringa: An Australasian Journal of Palaeontology. 10 (3): 187–193. doi:10.1080/03115518608619154.
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