Palmatolepidae is an extinct conodont family. It is part of the clade Prioniodontida, also known as the "complex conodonts".[1]
References
^Conodonts Meet Cladistics: Recovering Relationships and Assessing the Completeness of the Conodont Fossil Record. Philip C J Donoghue, Palaeontology, 44(1), pages 65-93, November 2003, doi:10.1111/1475-4983.00170