Species
Petalolithus praecursor Bouček et Přibyl, 1941
Synonymy list
1941     Petalolithus praecursor — Bouček & Přibyl , pp. 10,12, fig. text fig. 1j,k
1998     Petalolithus praecursor Bouček & Přibyl, 1941 — Štorch , pp. 221, fig. 2:4; 4:2,5,7; text fig. 5:1A-E
2003     Petalolithus praecursor Bouček & Přibyl — Loydell et al. , pp. 209, fig. 4y
Selection of related publications
Loydell, D. K., Männik, P., Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia.  Geological Magazine   140,   2,   205-229. DOI:10.1017/S0016756802007264
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Hemichordata | 
| Class | Pterobranchia | 
| Subclass | Graptolithina | 
| Order | Graptoloidea | 
| Suborder | Axonophora | 
| Superfamily | Retiolitoidea | 
| Family | Retiolitidae | 
| Subfamily | Petalolithinae | 
| Genus | Petalolithus | 
| Species | dubovikovi | 
| folium | |
| intermedius | |
| minor | |
| ovatoelongatus | |
| praecedens | |
| praecursor | 
References based on distribution
- Loydell et al., 2003 Aizpute 41 borehole 973.13 - Aeronian