Species

Trapezognathus quadrangulum Lindström, 1954


GIT 342-31	Trapezognathus quadrangulum \| Trapezognathus quadrangulum Lindström, 1955	Mäekalda outcrop		Volkhov Stage \| Toila Formation Saka Member
GIT 342-32	Trapezognathus quadrangulum \| Trapezognathus quadrangulum Lindström, 1955	Mäekalda outcrop		Volkhov Stage \| Toila Formation Saka Member
GIT 342-33	Trapezognathus quadrangulum \| Trapezognathus quadrangulum Lindström, 1955	Mäekalda outcrop		Volkhov Stage \| Toila Formation Saka Member
GIT 342-34	Trapezognathus quadrangulum \| Trapezognathus quadrangulum Lindström, 1955	Mäekalda outcrop		Volkhov Stage \| Toila Formation Saka Member
GIT 594-107	Trapezognathus quadrangulum \| Trapezognathus quadrangulum Lindström, 1955	Petseri 330 borehole	438	Middle Ordovician
GIT 74-24	Trapezognathus quadrangulum \| Trapezognathus quadrangulum Lindström, 1955	Ohesaare borehole	517.25 - 517.3	Volkhov Stage