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Swiss Journal of Palaeontology
Fig. 47 | Swiss Journal of Palaeontology

Fig. 47

From: Taxonomic revision of the snakes of the genera Palaeopython and Paleryx (Serpentes, Constrictores) from the Paleogene of Europe

Fig. 47

Neural spine length ratio in YPM populations of “Palaeopython” neglectus and Phosphoroboa filholii comb. nov. compared to same ratio in type material of various Paleogene constrictors from Europe. There is no overlap between the two YPM populations. That Palaeopython cadurcensis and “Palaeopython” neglectus are virtually identical is remarkable considering that the neural spine extends far out onto the zygosphenal tectum in the latter species

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