期刊
PALAEONTOLOGY
卷 54, 期 -, 页码 535-545出版社
WILEY
DOI: 10.1111/j.1475-4983.2011.01040.x
关键词
bioerosion; endolithic communities; new ichnospecies; sponges; rocky palaeoshores; upper Miocene
类别
资金
- Ministry of Science and Technology of Spain [JCI-2008-2431]
- Junta de Andalucia (Spanish government)
- Spanish DGI [CGL 2007-60507/BTE, CGL 2010-15372/BTE]
Neogene palaeoshore sediments are abundantly represented along the Mediterranean coast of Iberia. An outcrop north of the Sierra Tejeda, named La Resinera, exposes concentrations of pebbles and boulders of marble, comprising an upper Miocene marine beach deposit. The high diversity of bioerosion trace fossils present in these boulders includes structures produced by polychaete annelids, demosponges, echinoids and endolithic bivalves, which indicate a shallow shoreface environment. The ichnotaxa represented are Maeandropolydora sulcans, Caulostrepsis taeniola, Entobia geometrica, Entobia ovula, Circolites kotoncensis, Gastrochaenolites torpedo, Gastrochaenolites lapidicus, Gastrochaenolites ornatus and Gastrochaenolites turbinatus. The borings are Tortonian (late Miocene) in age. Also present, and particularly abundant, are large sponge borings that have a single chamber from which radiating canals emerge. This trace fossil is designated as Entobia resinensis isp. nov.
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