Trilobita

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 Geological Institutions of the University of Uppsala 37, 79–165.
References based on distribution