Genus
Ptychodictyon Gross, 1973
Selection of related publications
Pinakhina, D. V., Märss, T. 2018. The Middle Devonian acanthodian assemblage of the Karksi outcrop in Estonia. Estonian Journal of Earth Sciences 67, 1, 96-111. DOI:10.3176/earth.2018.07
Märss, T., Kleesment, A., Niit, M. 2008. Karksilepis parva gen. et sp. nov. (Chondrichthyes) from the Burtnieki Regional Stage, Middle Devonian of Estonia. Estonian Journal of Earth Sciences 57, 4, 219-230. DOI:10.3176/earth.2008.4.02
Niit, M. 2004. Applicability of microfossils of the Burtnieki Stage in stratigraphy [Bakalaureusetöö. Juhendaja: E. Pirrus; kaasjuhendajad: A.-L. Kleesment, T. Märss].bakalaureusetöö , pp. . Tallinna Tehnikaülikooli mäeinstituut.
Valiukevičius, J., Karatajūtė-Talimaa, V. 1986. Kompleks češuj akantodov iz osnovaniâ srednego devona Pribaltiki i Belorussii.Biofacies and fauna of the Silurian and Devonian basins of the Baltic , pp. 110-122. Zinatne.
Valiukevičius, J. J. 1985. Akantody narovskogo gorizonta Glavnogo devonskogo polâ. pp. 1-143. Mokslas.
List of species
2. Ptychodictyon distinctum Valiukevičius, 1979 | Narva Stage
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Organism group | Gnathostomata |
| Class | Acanthodii |
| Order | Diplacanthiformes |
| Family | Diplacanthidae |
| Genus | Diplacanthus |
| Ptychodictyon | |
| Species | ancestralis |
| distinctum | |
| rimosum | |
| sulcatum | |
| Genus | Rhadinacanthus |
References based on distribution
- Valiukevičius, 1985 Kaagvere 1 borehole Narva Stage
- Valiukevičius, 1985 Luutsniku 451 borehole 316.4 - 316.4 Narva Stage
- Valiukevičius & Karatajūtė-Talimaa, 1986 Mehikoorma 421 borehole 242.6 - 244.1 Rezekne Stage
- Valiukevičius, 1985 Gorodenka rapids outcrops Narva Stage
- Märss et al., 2008 Karksi outcrop Burtnieki Stage
- Märss et al., 2008 Karksi outcrop Burtnieki Stage