Skolithos (Haldeman, 1840)
Straight vertical to slightly inclined cylindrical tube burrows. Burrows are parallel, do not branch, cross, nor interpenetrate. Walls of burrow are smooth with structureless fill. Can be slightly J-shaped.
Dwelling, suspension feeding, predation.
Found in virtually every type of environment from marine to terrestrial Present in high-energy marine conditions, especially in nearshore shallow marine facies, deep marine submarine channels and canyons; continental floodplain and dune settings.
Worms, phoronids, and insect larvae. Arthropods, small vertebrates.
(Emended: Alpert, 1974)(Fillion and Pickerill, 1990)
Click on image for larger view and description