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'Lars', de nieuwste mosasauriër uit Maastricht Deel 4: Onderzoek en conclusies
Abstract
Dutch article about a subadult specimen of Mosasaurus hoffmanni from the Maastrichtian type area (the Netherlands), nicknamed mosasaur 'Lars'.
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A mandible of a Late Cretaceous sea turtle with affinities to Ctenochelys is reported from the Maastrichtian type area of the Netherlands. The triangular mandible has a well-developed symphyseal ridge surrounded on both sides by large, concave areas on the triturating surface. It represents the first potential occurrence of Ctenochelys from the Maastrichtian type area. This finding increases the diversity of the turtle fauna known from the Maastrichtian type area.
The youngest time interval of the Cretaceous Period is known as the Maastrichtian, in reference to the shallow-marine strata outcropping in the area surrounding the city of Maastricht, in the Netherlands- Belgium border region. While the type-Maastrichtian strata have yielded a wealth of paleontological data, comparatively little geochemical work has so far been carried out on this succession. To date, age assessment of the type-Maastrichtian, and stratigraphic correlation with sections elsewhere, have largely been based on biostratigraphy and preliminary attempts at cyclostratigraphy. However, these techniques are hampered by bio-provincialism and the presence of stratigraphic gaps in the succession, respectively. In recent years, stable carbon isotope stratigraphy has proven to be a powerful tool for correlating Upper Cretaceous strata on a global scale. When integrated with biostratigraphy, carbon isotope stratigraphy can be used to test the synchroneity of biological and climatic events across the globe and to reconcile inter-regional biostratigraphic schemes. Therefore, we have generated the first high-resolution bulk stable carbon isotope stratigraphy for the type- Maastrichtian, using an extensive sample set acquired within the context of the Maastrichtian Geoheritage Project spanning approximately 100 meters of stratigraphy at the Hallembaye and former ENCI quarries. In combination with bulk major and trace element data generated using μXRF, this record presents the first high- resolution chemostratigraphic survey for the type-Maastrichtian. The μXRF-based element profiles through the type-Maastrichtian succession reveal variable fluxes of terrigenous input into this carbonate system over time, marking three distinct stratigraphic sequences, separated by sequence boundaries at the Froidmont, Lichtenberg and Vroenhoven horizons. In addition, the carbon isotope profile records the Campanian–Maastrichtian Boundary Event (CMBE) and the Mid-Maastrichtian Event (MME) in the Maastrichtian type area for the first time. Our refined age model allows for global correlation between the type-Maastrichtian sequence and Maastrichtian successions worldwide and places the abundant paleontological records from the type- Maastrichtian in a global context.
Published in: Spirifer, 42 (3): 2-13.
Cranial and postcranial elements of the mosasaurid reptiles Mosasaurus hoffmanni Mantell 1829 and Plioplatecarpus marshi Dollo 1882 from the Maastrichtian type area, and of Mosasaurus maximus Cope 1869 and Plioplatecarpus depressus (Cope 1869) from New Jersey are compared. Views held by previous authors are discussed. It is concluded that these European and North American taxa are conspecific.
Giant Mosasaurus hoffmanni (Squamata, Mosasauridae) from the Cretaceous (Maastrichtian) of Penza
- D Bastiaans
- J J F Kroll
- D Cornelissen
- J W M Jagt
- A S Schulp
- P W Bosch
Bastiaans, D., Kroll, J.J.F., Cornelissen, D., Jagt, J.W.M. & Schulp,
A.S., 2020. Cranial palaeopathologies in a Late Cretaceous
mosasaur from the Netherlands. Cretaceous Research, 112:
104425. https://doi.org/10.1016/j.cretres.2020.104425.
-Felder, W.M. & Bosch, P.W., 1998. De St. Pietersberg:
typelokatie van het Maastrichtien. Grondboor & Hamer, 52
[Limburgnummer 9A: Geologie van de St. Pietersberg]: 53-63.
-Grigoriev, D.V., 2014. Giant Mosasaurus hoffmanni (Squamata,
Mosasauridae) from the Cretaceous (Maastrichtian) of Penza,
Russia. Proceedings of the Zoological Institute RAS, 318 (2):
148-167.
Anatomy and functional morphology of the largest marine reptile known, Mosasaurus hoffmanni (Mosasauridae, Reptilia) from the Upper Cretaceous, Upper Maastrichtian of the Netherlands
- T Konishi
- D Brinkman
- J A Massare
- M W Caldwell
Konishi, T., Brinkman, D., Massare, J.A. & Caldwell, M.W.
2011 New exceptional specimens of Prognathodon overtoni
(Squamata, Mosasauridae) from the upper Campanian of
Alberta, Canada, and the systematics and ecology of the genus.
Journal of Vertebrate Paleontology, 31 (5): 1026-1046. https://
doi.org/10.1080/02724634.2011.601714.
-Lingham-Soliar, T., 1995. Anatomy and functional morphology
of the largest marine reptile known, Mosasaurus hoffmanni
(Mosasauridae, Reptilia) from the Upper Cretaceous, Upper
Maastrichtian of the Netherlands. Philosophical Transactions of
the Royal Society of London, B347: 155-180.