Rogerella

Rogerella is a small pouch-shaped boring (a type of trace fossil) with a slit-like aperture currently produced by acrothoracican barnacles. These crustaceans extrude their legs upwards through the opening for filter-feeding (Seilacher, 1969; Lambers and Boekschoten, 1986). They are known in the fossil record as borings in carbonate substrates (shells and hardgrounds) from the Devonian to the Recent (Taylor and Wilson, 2003).

Rogerella elliptica borings in a Middle Jurassic (Callovian) crinoid stem (Matmor Formation, southern Israel).

References

Lambers, P., Boekschoten, G.J. (1986). "On fossil and recent borings produced by acrothoracic cirripeds". Geologie en Mijnbouw. 65: 257–268.CS1 maint: multiple names: authors list (link)
Seilacher, A. (1969). "Paleoecology of boring barnacles". American Zoologist. 9: 705–719. doi:10.1093/icb/9.3.705.
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.CS1 maint: multiple names: authors list (link)

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