Genus: Seinstedtia SCHULTZE, ARRATIA, HAUSCHKE & WILDE, 2022
Etymology: In reference to the nearby town Seinstedt (in lower Saxony, Germany).

Species: parva SCHULTZE, ARRATIA, HAUSCHKE & WILDE, 2022
Etymology: Latin, parva (Feminine), "small."

Holotype: MLU Sei.2010.76 (part), MLU Sei.2010.77 (counterpart).

Locality: Fuchsberg Quarry, near Seinstedt, Lower Saxony State, Germany.

Horizon: Horizon MFL, Section F1.

Biostratigraphy:

Age: Uppermost Noritan Stage, Late Triassic Epoch, Late Triassic.

Material: Nearly complete specimen.

Paratypes:

MLU Sei.2010.36: Fish missing atnerior part of head.

MLU Sei.2020.8080 (part), MLU Sei.2020.8081 (counterpart): Body without head.

MLU Sei.2020.83 (part), and MLU Sei.2020.82 (counterpart): Head and anteiro trunk, including squamation.