Species
Amorphognathus tvaerensis Bergström, 1962
Synonymy list
1962 Amorphognathus tvaerensis n. sp. — Bergström , pp. 36-37, fig. 4:7-10
1967 Amorphognathus tvaerensis Bergström — Viira , pp. text fig. 3; 20a-b
1971 Amorphognathus tvaerensis Bergström, 1962 — Bergström , pp. 135, fig. 2:10,11
1974 Amorphognathus ordovicica ssp. n. — Viira , pp. Pl. 7:17, 20-22
2006 Amorphognathus tvaerensis Bergström — Viira et al. , pp. 223-227, fig. Pl. 1:1-9, 11, 13-15
2008 Amorphognathus tvaerensis Bergström — Viira , pp. Pl. 1:5A–R, 6A–I, 8A–S
2015 Amorphognathus tvaerensis Bergström; — Männik et al. , fig. Fig. 8A-B
Selection of related publications
Paiste, T., Männik, P., Meidla, T. 2023. Emended Sandbian (Ordovician) conodont biostratigraphy in Baltoscandia and a new species of Amorphognathus. Geological Magazine 160, 3, 411-427. DOI:10.1017/S0016756822001005
Paiste, T., Männik, P., Meidla, T. 2022. Sandbian (Late Ordovician) conodonts in Estonia: distribution and biostratigraphy. GFF 1-15. DOI:10.1080/11035897.2021.2020333
Paiste, T., Männik, P., Nõlvak, J., Meidla, T. 2020. The lower boundary of the Haljala Regional Stage (Sandbian, Upper Ordovician) in Estonia. Estonian Journal of Earth Sciences 69, 2, 76-90. DOI:10.3176/earth.2020.05
Männik, P. 2017. Conodont biostratigraphy of the Oandu Stage (Katian, Upper Ordovician) in NE Estonia. Estonian Journal of Earth Sciences 66, 1, 1-12. DOI:10.3176/earth.2017.02
Männik, P., Loydell, D. K., Nestor, V., Nõlvak, J. 2015. Integrated Upper Ordovician–lower Silurian biostratigraphy of the Grötlingbo-1 core section, Sweden. GFF 137, 3, 226-244. DOI:10.1080/11035897.2015.1042032
Männik, P., Viira, V. 2012. Ordovician conodont diversity in the northern Baltic. Estonian Journal of Earth Sciences 61, 1, 1-14. Estonian Academy Publishers. DOI:10.3176/earth.2012.1.01
Viira, V., Aldridge, R. J., Curtis, S. 2006. Conodonts of the Kiviõli Member, Viivikonna Formation (Upper Ordovician) in the Kohtla section, Estonia. Proceedings of the Estonian Academy of Sciences. Geology 55, 3, 213-240. DOI:10.3176/geol.2006.3.02
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Conodonta |
| Genus | Amorphognathus |
| Species | complicatus |
| duftonus | |
| inaequalis | |
| ordovicicus | |
| superbus | |
| tvaerensis | |
| ventilatus | |
| viirae |
References based on distribution
- Männik & Viira, 2012 Kukruse Stage