Species: rzasnickii MENNER, 1948 (nomen dubium)
Etymology:
Holotype: MGRI VI 61/1
Locality: Right bank of the Vilyui River, at the mouth of the Iligira (Ulgir) River, 20 km upstream of the village of Suntar, , Siberia, Asian Russia.
Horizon:
Biostratigraphy:
Age: Lower substage, Toarcian Stage, Lias Epoch, Early Jurassic.
Material: Cervical centrum.
Referred material:
Locality: Mouth of the Couture-Yuryah River, Markha Gorge, Siberia, Asian Russia.
Horizon: Outcrop 9.
Biostratigraphy:
Age: Lower substage, Toarcian Stage, Lias Epoch, Early Jurassic.
Material:
Number: Not given: Isolated fragments.
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Species: ?jakowlewi MENNER, 1948 (nomen dubium)
Etymology:
Holotype: MGRI VI61/15
Locality: Right bank of the Vilyui River, at the mouth of the Iligira (Ulgir) River, 20 km upstream of the village of Suntar, , Siberia, Asian Russia.
Horizon:
Biostratigraphy:
Age: Lower substage, Toarcian Stage, Lias Epoch, Early Jurassic.
Material: Caudal centrum.