[4][5] They are relatively small Nereites characterized by large numbers of closely packed deeply meandering trails that tend to coil.

[6] Nereites irregularis has not been matched with known modern organisms, but they are generally believed to have been grazing trails (pascichnia) made by worms.

[8] Nereites biserialis comprises winding trails constituted by a furrow flanked on both sides by lobes.

Incipient biseriate Nereites are produced by hermit crabs occupying oblong shells (i.e.

[3] Nereites uniserialis comprises winding trails consisting of a furrow flanked by a single row of lobes.