Middle and Upper Devonian Porolepiformes from East Greenland with Special Reference to Glyptolepis groenlandica n. sp. and a Discussion of the Head in the Porolepiformes
- 31 December 1973
- journal article
- Published by JSTOR in Ichthyology & Herpetology
- Vol. 1973 (4), 825
- https://doi.org/10.2307/1443093