''Ladatheca'' is a genus of hyolith that closely resembles ''

Turcutheca ''Turcutheca'' is a Tommotian (Early Cambrian) genus of shelly fossil whose affinities are uncertain, generally considered as an orthothecid hyolith Hyoliths are animals with small conical surface, conical animal shell, shells, known as fossi ...

''. It has a straight conch with a smooth internal surface, and is found with what may be its operculum.

References

{{Taxonbar, from=Q6469267 Prehistoric protostome genera Paleozoic invertebrates Paleozoic life of Newfoundland and Labrador Paleozoic life of Nova Scotia Hyolitha