BioStor
 | Upper Jurassic and Lower Cretaceous ammonites of the Malone Mountains, Trans.-Pecos, Texas (1937) Bulletin of The Museum of Comparative Zoology 80: 391-412 |
 | A new Tithonian ammonoid fauna from Kurdistan, Northern Iraq L F Spath (1950) Bulletin of The British Museum (Natural History) Geology 1: 93-146 |
 | Eine Ammoniten-Fauna aus den Spiti-Schiefern von Muktinath in Nepal Herwart Helmstaedt (1969) Zitteliana 1: 63-89 |