Psammodontidae is an extinct family of holocephalans (sometimes referred to as bradyodonts)[1] known from the Carboniferous and Permian periods.[2] It is the only family of the order Psammodontiformes.[2] The order and family are named for the type genus, Psammodus, and all members are believed to have been durophagous nektobenthic carnivores.[3] The only remains assigned to Psammodontidae are isolated tooth plates.[1]
| Psammodontidae Temporal range:
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|---|---|
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| Articulated tooth-plates of the psammodont Archaeobatis | |
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| Isolated tooth-plate of the type genus Psammodus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Holocephali |
| Order: | †Psammodontiformes Obruchev, 1953 |
| Family: | †Psammodontidae |
| Type genus | |
| Psammodus Agassiz, 1834
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| Genera | |
References
edit- ^ a b "The phylogeny of the chimaeroids". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 249 (757): 101–219. 1965-06-10. doi:10.1098/rstb.1965.0010. ISSN 2054-0280.
- ^ a b "Psammodontiformes". Mindat.org. Retrieved 26 August 2024.
- ^ "PBDB Taxon". The Paleobiology Database. Retrieved 26 August 2024.
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