Ptychaspididae is a family of trilobites, containing the following genera:[1]
| Ptychaspididae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Asaphida |
| Superfamily: | †Dikelocephaloidea |
| Family: | †Ptychaspididae Raymond, 1924 |
| Genera | |
| |
References
edit- ↑ S. M. Gon III. "Order Asaphida". Retrieved November 21, 2010.
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