- Trifoliati sp
- Trifolitriletes
- Trifolium
- Trifolium sp
- Trifossapollenites
- Trifossapollenites constatus
- Trifossapollenites ellipticus
- Trifossapollenites ivoirensis
- Trifossapollenites magloirae
- Trifossapollenites minutus
- Trifossapollenites rousei
- Trifossapollenites rugosa
- Trifossapollenites sp
- Trifossapollenites sp. Meon,1991
- Triglochin
- Triglochin maritimum
- Triglochin sp
- Trigonella anguloalata
- Trigonella marinopinnatus
- Trigonella rugosa
- Trigonella tranguloalata
- Trigonella trianguloalata
- Trigonella turgidorimosa
- Trigonium arcticum
- Trigonium sp
- Trigonobalanoidea americana
- Trigonobalanoidea exacantha
- Trigonobalanoidea sp
- Trigonobalanus
- Trigonobalanus sp
- Trigonocarpus sp
- Trigonocarpus sp. Pett.,1966
- Trigonomyelon raniganjense
- Trigonopyxidia
- Trigonopyxidia fiscellata
- Trigonopyxidia ginella
- Trigonopyxidia microreticulata
- Trigonopyxidia sp
- Trigonopyxidia sp.I
- Trigonopyxis
- Trigonopyxis ginella
- Trigonopyxis sp
- Trigonospora
- Trihyphaecites
- Trihyphaecites fractus