Stephan Hack

Cleviceras exaratum

Cleviceras exaratum

Clydoniceras discus – eine anhaltende Suche

Coeloceras pettos

Coeloceras pettos grenouillouxi

Coenotheka zolleriana

Coenotheka zolleriana

Collotia (Collotia) fraasi

Collotia (Collotia) fraasi

Collotia entospina

Complexastrea zolleriana

Complexastrea zolleriana

Coroniceras (Metophioceras) longidomus

Coroniceras (Metophioceras) longidomus

Coroniceras brevidorsale

Coroniceras coronaries