Uchman et al.—New vermetid attachment trace from a Miocene rocky coast


891


Figure 5. Sketch drawings of the spiral etching traces from the Polish Miocene. (1) Re-drawing of a trace from photograph by Radwański (1977, pl. 10d), interpreted by him as a serpulid etching; (2, 3) Spirolites radwanskii n. igen. n. isp., top views of the negatives (rubber casts); (4–7) Spirolites radwanskii n. igen.n.isp., side viewsofthe negatives (rubber casts); (2, 4, 6) specimen INGUJ214P/SZG1a, the holotype; (3, 5, 7) specimen INGUJ214P/SZG1c. Drawings by A. Wierzbicki.


the Entobia ichnofacies (Bromley and Asgaard, 1993b), which is typical of Mesozoic–Cenozoic rocky shores (Gibert et al., 1998).


Figure 4. Generally, vermetid gastropods live in very shallow and


warm waters. The bioeroding Dendropoma sp. from Philippines lives at a depth of 0–1m(Savazzi, 2001), and one fromBermuda


Details of the rubber casts (1–4) of the boulder INGUJ214P/SZG1 and a specimen (5)of Spirolites radwanskii n. igen. n. isp. INGUJ214P/SZG4. (1) Four


stages of development of the borings: S1e–i=partly abraded specimens, S1b=fully coiled, well-preserved specimen, S1c=partly coiled specimen, S1d=small boring in the initial phase of development; (2) fully coiled specimen, S1a=the holotype; (3) different, partly coiled specimen, S1c; (4) side view of a trench, which shows the inverted Ω-like outline in cross section and two orders of annulation along the course; (5) Spirolites cuts Entobia (arrowed) and shows an encrustation by a Cheilostomata bryozoan.


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