Species
Yangtzeplacognathus crassus (Chen et Zhang, 1993)
Synonymy list
2018     Yangtzeplacognathus crassus — Wu et al. 
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.  Estonian Academy Publishers.  DOI:10.3176/earth.2012.1.01
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.  Lunds Universitet. 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Chordata | 
| Class | Conodonta | 
| Family | Polyplacognathidae | 
| Genus | Yangtzeplacognathus | 
| Species | crassus | 
| foliaceus | |
| protoramosus | 
References based on distribution
- Männik & Viira, 2012 Kunda Stage