After Carroll, 1988, and Frickhinger, 1995
<==o †Haplolepiformes `--o †Haplolepidae |--o †Haplolepis [Eurylepis; Mecolepis; Mekolepis; Parahaplolepis] Penn. Eu. NA. | `-- †H. corrugata (Newberry, 1856) |?-o †Microhaplolepis Penn. NA. [Diamond Mine, Linton, Ohio] | |-- †M. tuberculata (Newberry, 1856) [Parahaplolepis tuberculata] | |-- †M. ovoidea (Newberry, 1856) | `-- †M. serrata (Newberry, 1856) `--o †Pyritocephalus [Teleopterina] Penn. Eu. NA. |-- †P. lineatus (Newberry, 1856) `-- †P. sculptus
Reference(s):
- Carroll, R. L., 1988: Vertebrate paleontology and evolution.
 –W. H. Freeman and company, New York, 1988, 698
- Carroll, R. L., 1988: Appendix. 594-648
 in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
 –W. H. Freeman and company, New York, 1988, 698
- Frickhinger, K. A., 1995: Fossil Atlas – Fishes.
 –Mergus – Publishers for Natural History and Pet Books, Hans A. Baensch, Malle, Germany, 1-1088
- Long, J. A., 1995: The Rise of Fishes: 500 million years of evolution.
 –Johns Hopkins University Press, Baltimore & London, pp. 1-223
- Nelson, J. S., 1994: Fishes of the world.
 –John Wiley & Sons Inc., New York, 1994, xx-600
 
