Vorlage:Obruchev, 1941
Aus WORLDFISH WIKI
- Obruchev, D.V. 1941. Ostatki Aspidosteus gen. nov. (Heterostraci) iz verkhnego devona r. Lovati [Remains of Aspidosteus gen. nov. (Heterostraci) from the Upper Devonian of Lovat’ River]. Trudy Paleontologicheskogo Instituta, 8 (4): 7–22.