''Arenipiscis westolli'' is an extinct buchanosteid arthrodire placoderm. Its fossils have been found in Emsian-

aged Ageing ( BE) or aging ( AE) is the process of becoming older. The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. In a ...

marine strata of New South Wales,

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. The generic name, meaning "sand fish," refers to how the dermal surfaces of the armor have a pattern of tiny bumps, creating a granular texture.

References

Buchanosteidae Placoderms of Australia {{Placoderm-stub