Vorlage:Downs et al., 2013
Aus WORLDFISH WIKI
- Downs, J.P., Daeschler, E.B., Jenkins, F.A., Jr. & Shubin, N.H. 2013. Holoptychius bergmanni sp. nov. (Sarcopterygii, Porolepiformes) from the Upper Devonian of Nunavut, Canada, and a review of Holoptychius taxonomy. Proceedings of the Academy of Natural Sciences of Philadelphia, 162: 47-59. (doi)