Species
Petalolithus ovatoelongatus (Kurck, 1881)
Synonymy list
1850     Graptolithus palmeus — Barrande , pp. 59, fig. 3:7
1851     Petalolithus palmeus — Suess , pp. 104, fig. 8:1
1868     Diplograptus palmeus — Nicholson , pp. 523, fig. 19:2-3
1881     Cephalograptus ovato-elongatus n. sp. — Kürck , pp. 303, fig. 14:10
1890     Diplograptus palmeus — Törnquist , pp. 29, fig. 1:30-31; 2:1-3
1908     Petalograptus palmeus — Elles & Wood , pp. 274, fig. 188a
1908     Petalograptus palmeus var. latus — Elles & Wood , pp. 275, fig. 189a-c; 32:2c-f
1942     Petalolithus ovato-elongatus — Bouček & Přibyl , pp. 2, fig. 1:1-2
1952     Diplograptus (Petalolithus) ovato-elongatus — Münch , pp. 67, fig. 9:1-3
1967     Petalograptus ovato-elongatus — Koren , pp. 133, fig. 1:12
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
Ulst, R. 1986. Osobennosti stroeniâ proksimpli u nekotoryh llandoverijskih graptolitov Latvii.  Biofacies and fauna of the Silurian and Devonian basins of the Baltic, pp. 22-24.   Zinatne. 
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian. pp. 1-267.  Mokslas. 
Gailite, L. K., Rybnikova, M. V., Ulst, R. Ž. 1967. Stratigrafiâ, fauna i usloviâ obrazovaniâ silurijskih porod Srednej Pribaltiki. pp. 1-304.  Zinatne. 
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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 975.06 - Aeronian
- Gailite et al., 1967 Adze 6 borehole Llandovery
- Gailite et al., 1967 Bauska borehole Llandovery
- Paškevičius, 1979 Stonishkiai 1 borehole 1915 - 1915.5 Llandovery
- Paškevičius, 1979 Stonishkiai 1 borehole 1915 - 1915.5 Llandovery
- Paškevičius, 1979 Paroveja 9 borehole 718 - 718 Llandovery
- Ulst, 1986 Holdre borehole 313 - 313 Llandovery