Mesonacinae
| Mesonacinae Temporal range: Botomian | |
|---|---|
| Mesonacis vermontanus, late Lower Cambrian, Australia, Courtesy of Sam Gon III. | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Redlichiida |
| Family: | †Olenellidae |
| Subfamily: | †Mesonacinae Walcott, 1890 |
| Genera | |
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The Mesonacinae comprise an extinct subfamily of trilobites that lived during the Botomian, found in North-America, Greenland and North-Western Scotland. The two genera in this subfamily are Mesonacis and Mesolenellus.