- Trachyminuscula sp
- Trachyminuscula tenella
- Trachyminuscula veta
- Trachyoligotriletes
- Trachyoligotriletes absoletum
- Trachyoligotriletes alutaceus
- Trachyoligotriletes arillatus
- Trachyoligotriletes asperatus
- Trachyoligotriletes botuliformis
- Trachyoligotriletes chylalensis
- Trachyoligotriletes compactiusculus
- Trachyoligotriletes crassum
- Trachyoligotriletes exasperatum
- Trachyoligotriletes gyratus
- Trachyoligotriletes hirtum
- Trachyoligotriletes hyalinus
- Trachyoligotriletes incrassatus
- Trachyoligotriletes laminaritus
- Trachyoligotriletes magnus
- Trachyoligotriletes minimus
- Trachyoligotriletes minutus
- Trachyoligotriletes multangularis
- Trachyoligotriletes navicularis
- Trachyoligotriletes nevelensis
- Trachyoligotriletes obsuletes
- Trachyoligotriletes pellucidus
- Trachyoligotriletes perlucidum
- Trachyoligotriletes planus
- Trachyoligotriletes rugosus
- Trachyoligotriletes serpentinus
- Trachyoligotriletes sp
- Trachyoligotriletum
- Trachyoligotriletum sp
- Trachyooligotriletum
- Trachypsophosphaera
- Trachypsophosphaera absoleta
- Trachypsophosphaera asemanta
- Trachypsophosphaera asperata
- Trachypsophosphaera cineraria
- Trachypsophosphaera exilis
- Trachypsophosphaera hyalina
- Trachypsophosphaera incrassata
- Trachypsophosphaera minor
- Trachypsophosphaera minuta
- Trachypsophosphaera minutissima