Genus: Mystiornis KUROCHKIN, ZELENKOV, AVERIANOV & LESHCHINSKIY, 2011
Etymology: Greek, mysterion, "mysterious" and Greek, ornis, "bird."

Species: cyrili KUROCHKIN, ZELENKOV, AVERIANOV & LESHCHINSKIY, 2011
Etymology: In honor of Cyril Walker.

Holotype: PM TS 16/5-45

Locality: Shestakovo-1 locality, 55°54.6'N, 87°56.9'E, Techebulinski District, Kemerovskaya Oblast, South Siberia, Asian Russia.

Horizon: Ilekskaya Svita.
Biostratigraphy:

Age: Berriasian Stage, Lower Neocomian Subepoch, Lower Early Cretaceous Epoch,-Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Left metatarsus.

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