Episkeletozoans and bioerosional ichnotaxa on isolated bones of Late Cretaceous mosasaurs and cheloniid turtles from the Maastricht area, the Netherlands

Author:

Jagt John W.M.1,Deckers Mart J.M.2,De Leebeeck Magda3,Donovan Stephen K.4,Nieuwenhuis Eric5

Affiliation:

1. Natuurhistorisch Museum Maastricht, de Bosquetplein 6-7, 6211 KJ Maastricht , the Netherlands

2. Industriestraat 21, 5931 PG Tegelen, the Netherlands

3. Guldensporenlaan 19, 3120 Tremelo , Belgium

4. Naturalis Biodiversity Center, Taxonomy and Systematics Group , Postbus 9517, 2300 RA Leiden , the Netherlands

5. Hub. Ortmansstraat 4, 6286 EA Partij-Wittem, the Netherlands

Abstract

Abstract Isolated bones of three taxa of marine reptiles (Mosasaurus hoffmannii Mantell, Plioplatecarpus marshi Dollo and Allopleuron hofmanni (Gray)) from various levels within the Maastricht Formation (upper Maastrichtian) at the former ENCI-HeidelbergCement Group quarry (Maastricht, the Netherlands) exhibit bioerosional traces and encrustation. Episkeletozoans include dimyid, ostreid and monopleurid bivalves, at least three species of cheilostome and cyclostome bryozoans and two adnate calcareous foraminifera. The bones show biting traces (Gnathichnus pentax Bromley, Linichnus cf. serratus Jacobsen & Bromley and Machichnus isp.), as well as borings. The latter may be referred to Karethraichnus lakkos Zonneveld, Bartels, Gunnell & McHugh, which is here considered to be a junior synonym of Gastrochaenolites isp.

Publisher

Walter de Gruyter GmbH

Subject

General Earth and Planetary Sciences

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5. Bardet, N., Jagt, J.W.M., Kuypers, M.M.M. & Dortangs, R.W., 1998. Shark tooth marks on a vertebra of the mosasaur Plioplatecarpus marshi from the Late Maastrichtian of Belgium. Publicaties van het Natuurhistorisch Genootschap in Limburg 41, 52–55.

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