Species
Triplagnostus gibbus (Linnarsson, 1869a)
Synonymy list
1869 Agnostus gibbus n. sp. — Linnarsson , pp. 81, fig. 2:52
1935 Triplagnostus gibbus (Linnarsson) — Howell , pp. 14, fig. 1:5,6
2008 Ptychagnostus gibbus (Linnarsson) — Høyberget & Bruton , pp. 51, fig. 8N-S
2023 Triplagnostus gibbus (Linnarsson, 1869) — Weidner et al. , pp. 46, fig. 25A–T
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Agnostida |
| Family | Ptychagnostidae |
| Genus | Triplagnostus |
| Species | gibbus |