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Abstract
Cryptic surfaces beneath early Sheinwoodian stromatoporoids from Saaremaa (Mustjala Member) were sparsely encrusted (4% in average of encrusted surface areas) by sheet-like bryozoans, ribbon-like bryozoans, cornulitids (Cornulites sp. and Conchicolites sp.), Palaeoconchus sp. (Microconchida), Aulopora sp. and a crinoid. The community is numerically dominated by bryozoans (38.1%) and microconchids (36.4%). The majority of the encrusted area is covered by bryozoans (94.5%). Endolithic organisms were represented by Trypanites borings.
Acknowledgements
The author acknowledges the Sepkoski Grant (Paleontological Society), Estonian Science Foundation Grant ETF9064 and the target-financed project (from the Estonian Ministry of Education and Science) SF0180051s08 for financial support. He extends his gratitude to Mark A. Wilson (The College of Wooster) for improvements in the earlier version of the manuscript, and he also thanks Ingrid Vinn (Estonian Environmental Board, Tartu) who helped with the fieldwork. The author is grateful to anonymous reviewers for the constructive reviews.