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Swiss Journal of Palaeontology
Fig. 2 | Swiss Journal of Palaeontology

Fig. 2

From: Geochemical investigation of the mixed Máriahalom vertebrate fauna at the Paleogene–Neogene boundary in the Central Paratethys: environmental conditions and age constrain

Fig. 2

PAAS-normalized REE element ratios and selected REE element patterns of the Máriahalom vertebrates. A The plot is based on taxonomy. B The plot is based on the analysed material (en: enamel/enameloid, en-de: enamel–dentine mixture, de: dentine: bn-rt: bone or root). The LREE, MREE, HREE represent the average of the light (La, Pr, Ce, Nd), middle (Eu, Gd, Tb, Dy), and heavy (Er, Tm, Yb, Lu) REE. MREE* represents the average of the LHREE and HREE. Note that the data vary between an MREE-enriched and a LREE-depleted endmembers. Importantly, both types of patterns can exist in the very same fossils. The first rather reflects environmental REE variation, while the second relates to REE uptake mechanism (see text). Horizontal arrows mark data points with displayed REE patterns on the right. The REE patterns are plotted in a logarithmic scale; it is noted that some of the specimens are more enriched, while others are depleted in REE

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