Vorlage:Daeschler et al., 2019

• Daeschler, E.B., Downs, J.B. & Matzko, C. 2019. New material supports a description and taxonomic revision of Holoptychius ? radiatus (Sarcopterygii, Tristichopteridae) from the Upper Devonian Catskill Formation in Pennsylvania, USA. Proceedings of the Academy of Natural Sciences of Philadelphia, 167 (1): 11–25.