<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Isolated bones of three taxa of marine reptiles (<italic>Mosasaurus hoffmannii</italic> Mantell, <italic>Plioplatecarpus marshi</italic> Dollo and <italic>Allopleuron hofmanni</italic> (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 (<italic>Gnathichnus pentax</italic> Bromley, <italic>Linichnus</italic> cf. <italic>serratus</italic> Jacobsen &amp; Bromley and <italic>Machichnus</italic> isp.), as well as borings. The latter may be referred to <italic>Karethraichnus lakkos</italic> Zonneveld, Bartels, Gunnell &amp; McHugh, which is here considered to be a junior synonym of <italic>Gastrochaenolites</italic> isp.</p></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.

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

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

Geologos

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Isolated bones of three taxa of marine reptiles (Mosasaurus hoffmannii Mantell, Plioplatecarpus marshi Dollo and Allopleuron hofmanni (Gray)) from various...

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

Published Online: May 16, 2020

Page range: 39 - 49

Received: Aug 25, 2019

Accepted: Feb 11, 2020

DOI: https://doi.org/10.2478/logos-2020-0003

Keywords
Reptiles, epizoans, dentalites, Maastrichtian, northwest Europe

© 2020 John W.M. Jagt et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

Published Online: May 16, 2020

Page range: 39 - 49

Received: Aug 25, 2019

Accepted: Feb 11, 2020

DOI: https://doi.org/10.2478/logos-2020-0003

KeywordsReptiles, epizoans, dentalites, Maastrichtian, northwest Europe

© 2020 John W.M. Jagt et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Reptiles, epizoans, dentalites, Maastrichtian, northwest Europe