Trilobita
Species

Illaenus planifrons Jaanusson, 1957

Synonymy list
1953     Illaenus sulcifrons Holm — Jaanusson , pp. 474
1953     Illaenus aff. sulcifrons Holm — Jaanusson & Mutvei , pp. 11,14, 16, 19
1953     Illaenus planifrons n. sp. (Nomen nudum) — Jaanusson & Mutvei , pp. 34
1957     Illaenus planifrons n. sp. — Jaanusson , pp. 142-145 , fig. 9: 3-7, 9-11; 10: 1
Selection of related publications
Jaanusson, V. 1957. Unterordovizische Illaeniden aus Skandinavien. Mit Bemerkungen über die Korrelation des Unterordoviziums. Bulletin of the Geological Institutions of the University of Uppsala 37, 79–165.