Telephinidae
| Telephinidae Temporal range:  | |
|---|---|
| Opipeuterella, reconstruction in dorsal view and swimming | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | †Trilobita | 
| Order: | †Proetida | 
| Superfamily: | †Bathyuroidea | 
| Family: | †Telephinidae Marek, 1952 | 
| Genera and subgenera | |
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| Synonyms | |
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Telephinidae is a family of pelagic trilobites with large wide-angle eyes, occupying most of the free cheeks, downward directed facial spines and 9-10 thorax segments. The family is known during the entire Ordovician and occurred in deep water around the globe.