Family
Ceratopygidae Linnarsson, 1869
Selection of related publications
Pärnaste, H., Bergström, J., Zhou, Z.-Y. 2013. High-resolution trilobite stratigraphy of the Lower-Middle Ordovician Öland Series of Baltoscandia.  Geological Magazine   150,   3,   509–518. DOI:10.1017/S0016756812000908
Terfelt, F., Ahlgren, J. 2007. Macropyge (Promacropyge) scandinavica new species; the first macropyginid trilobite recorded from the Furongian of Baltica.  Journal of Paleontology   81,   6,   1516-1522. DOI:10.1666/06-020R.1
List of species
1. Ceratopyge acicularis (Sars et Boeck, 1838) | Varangu Stage
2. Ceratopyge forficula (Sars, 1835) | Varangu Stage
3. Ceratopyge latelimbata Moberg et Segerberg, 1906 | Varangu Stage
4. Hysterolenus laevicauda Moberg et Segerberg, 1906 | Tremadocian
5. Hysterolenus toernquisti Moberg, 1898 | Tremadocian
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Trilobita | 
| Order | Asaphida | 
| Superfamily | Asaphoidea | 
| Family | Asaphidae | 
| Ceratopygidae | |
| Genus | Ceratopyge | 
| Hysterolenus | |
| Macropyge | |
| Yuepingia | |
| Family | Dikelokephalinidae | 
| Remopleurididae | 
 See also