Psammosteidae
| Psammosteidae Temporal range: Early to Late Devonian
| |
|---|---|
| |
| Drepanaspis gemuendina and Tiaraspis subtilis | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Pteraspidomorphi |
| Subclass: | †Heterostraci |
| Order: | †Pteraspidiformes |
| Suborder: | †Psammosteida |
| Family: | †Psammosteidae |
| Genera | |
Psammosteidae is an extinct family of flattened, benthic
Late Devonian
, dying out in the extinction event at the very end of the Devonian.
Many of the Late Devonian genera, such as Psammolepis, were among the largest heterostracans ever, growing to be at least 1.5 metres in width.
References
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