Species
Trapezognathus quadrangulum Lindström, 1954
Synonymy list
1954     Trapezognathus quadrangulum n. sp. — Lindström , pp. 598, fig. 5:38,39
2001     Trapezognathus quadrangulum Lindström, 1955 — Rasmussen , pp. 136
2003     Trapezognathus quadrangulum — Tolmacheva et al. , pp. 33
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
Tolmacheva, T., Egerquist, E., Meidla, T., Tinn, O., Holmer, L. 2003. Faunal composition and dynamics in unconsolidated sediments: a case study from the Middle Ordovician of the East Baltic.  Geological Magazine   140,   1,   31-44. DOI:10.1017/S001675680200701X
Viira, V., Löfgren, A., Mägi, S., Wickström, J. 2001. An Early to Middle Ordovician succession of conodont faunas at Mäekalda, northern Estonia.  Geological Magazine   138,   6,   699-718. DOI:10.1017/S0016756801005945
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Klassificering
References based on distribution
- Männik & Viira, 2012 Volkhov Stage
- Tolmacheva et al., 2003a Putilovo quarry, Leningrad Oblast Volkhov Stage