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; Vinn and Wilson, 2010).
- 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.
- Vinn, O.; Wilson, M.A. (2010). "Early large borings from a hardground of Floian-Dapingian age (Early and Middle Ordovician) in northeastern Estonia (Baltica)". Carnets de Géologie. 2010: CG2010_L04. doi:10.4267/2042/35594. Retrieved 2014-06-10.