Psammodontidae

Psammodontidae Temporal range: Carboniferous–Permian PreꞒ Ꞓ O S D C P T J K Pg N
Articulated tooth-plates of the psammodont Archaeobatis
Isolated tooth-plate of the type genus Psammodus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Holocephali
Order:	†Psammodontiformes Obruchev, 1953
Family:	†Psammodontidae
Type genus
Psammodus Agassiz, 1834
Genera
†Apodometes †Archaeobatis †Astrabodus †Dimyleus †Homalodus †Mazodus †Mylacodus †Mylax †Pinacodus †Pleurogomphus †Psammodus †Rhymodus

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]

References

1. "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.
2. "Psammodontiformes". Mindat.org. Retrieved 26 August 2024.
3. "PBDB Taxon". The Paleobiology Database. Retrieved 26 August 2024.