Gastrochaenolites is a trace fossil formed as a clavate (club-shaped) boring in a hard substrate such as a shell, rock or carbonate hardground. The aperture of the boring is narrower than the main chamber and may be circular, oval, or dumb-bell shaped (Kelly and Bromley, 1984). Gastrochaenolites is most commonly attributed to bioeroding bivalves such as Lithophaga and Gastrochaena (Kleeman, 1980). The fossil ranges from the Ordovician to the Recent (Taylor and Wilson, 2003).
- Kelly, S.R.A., Bromley, R.G. (1984). "Ichnological nomenclature of clavate borings". Palaeontology 27: 793–807.
- Kleemann, K.H. (1980). "Boring bivalves and their host corals from the Great Barrier Reef". Journal of Molluscan Studies 46: 13–54.
- Taylor, P.D., Wilson. M.A. (2003). "Palaeoecology and evolution of marine hard substrate communities". Earth-Science Reviews 62: 1–103. doi:10.1016/S0012-8252(02)00131-9.