期刊
CARNETS DE GEOLOGIE
卷 -, 期 -, 页码 83-87出版社
CARNETS GEOLOGIE
DOI: 10.4267/2042/49316
关键词
Trace fossils; Skolithos; shallow shelf; late Silurian; Baltica
资金
- SEPKOSKI Grant Program (Paleontological Society)
- Estonian Science Foundation [ETF 9064]
- Estonian Ministry of Education and Science [SF 0180051s08]
Abundant Skolithos burrows are here described from a possible regressive event bed at Ohesaare cliff (Pridoli), Saaremaa, Estonia. The vertical, cylindrical burrows are identified as Skolithos rather than Trypanites because they intercept and bypass rather than cut bioclasts in the limestone matrix. The absence of encrustation on the upper bedding surface also is evidence that these traces are soft-sediment burrows rather than hardground borings. We interpret this intensive bioturbation by Skolithos-producing organisms as an indicator of a shallow water paleoenvironment with high hydrodynamic energy.
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