| Mesonacinae Temporal range: Botomian
| |
|---|---|
| |
| Mesonacis vermontanus, late Lower Cambrian, Australia, Courtesy of Sam Gon III. | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Redlichiida |
| Family: | †Olenellidae |
| Subfamily: | †Mesonacinae Walcott, 1890 |
| Genera | |
| |
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.1
References
References
- Lieberman, B.S. (1999). "Systematic Revision of the Olenelloidea (Trilobita, Cambrian)" (PDF). Bulletin of the Peabody Museum of Natural History. 45. Archived from the original (PDF) on 2016-06-24. Retrieved 2012-10-30.
- Palmer, A.R.; Repina, L.N. (1993), "Through a Glass Darkly: Taxonomy, Phylogeny and Biostratigraphy of the Olenellina", The University of Kansas Paleontological Contributions, 3: 1–35