Genus

Periodon Hadding, 1913


GIT 164-359	Periodon flabellum \| Periodon flabellum (Lindström, 1954)	Petseri 330 borehole	444	Lower Ordovician
GIT 164-375	Periodon \| Periodon sp.	Sturi 8 borehole	1024.4 - 1024.54	\| Idavere-Jõhvi Stage
GIT 164-376	Periodon aculeatus \| Periodon aculeatus Hadding, 1913	Ohesaare borehole	498.8	Uhaku Stage
GIT 164-396	Periodon \| Periodon sp.	Karula 320 borehole	404.6	Jõhvi Substage
GIT 164-455	Periodon aculeatus \| Periodon aculeatus Hadding, 1913	Ohesaare borehole	505.78 - 505.83	Aseri Stage
GIT 164-526	Periodon aculeatus \| Periodon aculeatus Hadding, 1913	Ohesaare borehole	498.9	Uhaku Stage
GIT 164-543	Periodon aculeatus \| Periodon aculeatus Hadding, 1913	Ohesaare borehole	489.8 - 489.83	Uhaku Stage
GIT 164-667	Periodon flabellum \| Periodon flabellum (Lindström, 1954)	Narva outcrop, left bank river		Leetse Formation
GIT 164-668	Periodon flabellum \| Periodon flabellum (Lindström, 1954)	Narva outcrop, left bank river		Leetse Formation
GIT 164-669	Periodon flabellum \| Periodon flabellum (Lindström, 1954)	Narva outcrop, left bank river		Leetse Formation