A cast of the seymouriamorph *Kotlassia prima* Amalitzky, 1898 skull. The cast belongs to the collection of the Saint Petersburg State University. A 3D scan was performed by [Grigoriev Dmitry](https://www.facebook.com/dmitry.grigoriev.946/) using a structure light based 3D scanner [RangeVision Spectrum](https://rangevision.com/en/products/spectrum/).