Conodonta

Yangtzeplacognathus Zhang, 1998

Selection of related publications
Männik, P., Viira, V. 2012. Ordovician conodont diversity in the northern Baltic. Estonian Journal of Earth Sciences 61, 1, 1-14. DOI:10.3176/earth.2012.1.01
Hints, O., Viira, V. & Nõlvak, J. 2012. Darriwilian (Middle Ordovician) conodont biostratigraphy in NW Estonia. Estonian Journal of Earth Sciences 61, 4, 210-226. DOI:10.3176/earth.2012.4.03
Viira, V. 2011. Lower and Middle Ordovician conodonts from subsurface of SE Estonia and adjacent Russia. Estonian Journal of Earth Sciences 60, 1, 1-21. DOI:10.3176/earth.2011.1.01
Sjöstrand, L. L. M. 2003. Early to early Middle Ordovician conodont biostratigraphy of the Tamsalu drill core, central Estonia. Examensarbeite i geologi vid Lunds Universitet , 156, 1-20.
Viira, V. 1974. Ordovician conodonts of the East Baltic.
Viira, V. 1967. Ordovician conodont succession in the Ohesaare core. Proceedings of the Academy of Sciences of the Estonian SSR. Chemistry and Geology 16, 4, 319-329.