Species
Janograptus laxatus Tullberg, 1880
Synonymy list
1880 Janograptus laxatus — Tullberg , pp. 315, fig. Tafl. 11, figs. 3–9
1913 Janograptus laxatus Tullberg — Hadding , pp. 35, fig. pl. 1, figs. 19–22
1937 Janograptus laxatus Tullberg — Ekström , pp. 31, fig. pl. 6, figs. 7–8
2017 “Janograptus laxatus” Tullberg, 1880 — Chen, X. et al. , pp. 121, fig. Figs. 6-11H; 6-12B, F–H, K–M
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Dichograptina |
| Family | Didymograptidae |
| Genus | Janograptus |
| Species | laxatus |