Species: gubini IVAKHNENKO, 2000
Etymology: In honor of palaeontologist Yu. M. Gubin.

Holotype: PON 162/32

Locality: Glyadnaya Shchel’ya locality, Mezenskii District, Arkhangelsk Region, European Russia.

Horizon: Krasnoshchel’ya Formation, Urzhumian Horizon.

Biostratigraphy: Mezen Faunal Assemblage.

Age: Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Incomplete skull and fragmentary skeleton.

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Species: tippula IVAKHNENKO, 2000
Etymology: Latin, tippula, Small spider, figurative, baby.

Holotype: PIN 4541/2

Locality: Ust-Vashka Locality, Leshukonskii District, Arkhangelsk Region, European Russia.

Horizon: Krasnoshchel’ya Formation, Biarmian Series, Urzhumian Stage, Urzhumian Horizon.

Biostratigraphy: Mezen Faunal Assemblage.

Age: Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Fragmentary left dentary.