The lack of a clear definition of the nematophytes has led to it being used as a wastebasket taxon , with all manner of tubes and cell-patterned cuticles from around the Silurian being dubbed `` nematophytic '' more as a statement of ignorance than as a scientifically meaningful statement .
The lack of a clear definition of the nematophytes has led to it being used as a wastebasket taxon .