- Yvonniellina feugueuri
- Yvonniellina glabra
- Yvonniellina oedelemensis
- Yvonniellina sp.A
- Yvonniellina sp.B
- Yvonniellina tongerenensis
- Yvonniellina variabilis
- Zaireacolpites
- Zaireacolpites circulatus
- Zaklinskaiaepollenites concaviformis
- Zaklinskiana
- Zaklinskiana elegans
- Zaklinskiana plicata
- Zalacca edulis
- Zalacca wallichiana
- Zanthoxylum
- Zanthoxylum giganteum
- Zanthoxylum sp
- Zea
- Zebrasporites
- Zebrasporites corneolus
- Zebrasporites fimbriatus
- Zebrasporites interscriptus
- Zebrasporites kahleri
- Zebrasporites laevigatus
- Zebrasporites rectus
- Zebrasporites sinelineatus
- Zebrasporites sp
- Zebrasporites sp. Pras.,1997
- Zebrasporites sp.A