There are 2 matches

Collection Authorizer Collection name Reference
24772M. Foote Didymothyris didyma Community, Ludlovian, C. Urals Ludlow - Silurian 2 - Russian Federation Sapelnikov et al. (1999)
90326A. Hendy October Revolution Island [Ust'-Spokojnaya Fm] Ludlow - Silurian 2 - Russian Federation Blieck et al. (2002)

Do another search