The Turbellaria are ane o the tradeetional sub-diveesions o the phylum Platyhelminthes (flatworms), an include aw the sub-groups that are nae exclusively parasitic.

Turbellaria
Temporal range: Middle Triassic–0[1]
Possible Ordovician record[2]
A marine speshies Pseudobiceros bedfordi (Bedford's Flatwirm), a member o the Polycladida
Scientific classification e
Kinrick: Animalia
Phylum: Platyhelminthes
Cless: Turbellaria
Ehrenberg, 1831

References

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  1. Dirk Knaust (2010). "Remarkably preserved benthic organisms and their traces from a Middle Triassic (Muschelkalk) mud flat". Lethaia. 43 (3): 344–356. doi:10.1111/j.1502-3931.2009.00196.x.
  2. Dirk Knaust; André Desrochers (2019). "Exceptionally preserved soft-bodied assemblage in Ordovician carbonates of Anticosti Island, eastern Canada". Gondwana Research. 71: 117–128. doi:10.1016/j.gr.2019.01.016.