Genus

Gorbyoceras Shimizu et Obata, 1935


GIT 426-6	Gorbyoceras clathroannulatum	Saare Manor (Lyckholm) old quarry	Vormsi Stage
GIT 426-81	Gorbyoceras textumaraneum	Ristna, Hiiumaa	Nabala Stage \| ?, erratic
GIT 426-82	Gorbyoceras textumaraneum	Ristna, Hiiumaa	Nabala Stage \| ?, erratic