Trilobita

Pseudosphaerexochus (Pseudosphaerexochus) dubius Kielan-Jaworowska, Bergström et Ahlberg, 1991

Synonymy list
1960     Ceraurus? sp. — Kielan, pp. 128, fig. 21:4-7; text fig. 35
1991     Pseudosphaerexochus (Pseudosphaerexochus) dubius sp. nov. — Kielan-Jaworowska et al., pp. 233, fig. 8E
Selection of related publications
Kielan-Jaworowska, Z., Bergström, J. Ahlberg, P. 1991. Cheirurina (trilobita) from the Upper Ordovician of Västergötland and other regions of Sweden. GFF 113, 2-3, 219-244. DOI:10.1080/11035899109453857
References based on distribution