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Swiss Journal of Palaeontology
Fig. 4 | Swiss Journal of Palaeontology

Fig. 4

From: Is the relative thickness of ammonoid septa influenced by ocean acidification, phylogenetic relationships and palaeogeographic position?

Fig. 4

Cretaceous ammonoids, Albian, Madagascar (for details see Table 1). (C1, C2, C5, C7, C9) Argonauticeras besairei. (C1), PIMUZ 31258, (C2) (PIMUZ 37664), (C3) Cleoniceras sp. RUB-Pal 14106-2G, (C4) Desmoceras sp. (RUB-Pal 14107-2H), (C5) RUB-Pal 14102, (C6) Gaudryceras sp. (RUB-Pal), (C7) RUB-Pal 14103, (C8 to C12) Eogaudryceras umbilicostriatus, (C8) RUB-Pal 14101C, (C9) RUB-Pal 14104–3.11b, (C10) RUB-Pal 14101A, (C11) RUB-Pal 14101B, (C12) RUB-Pal 14101D. Scale bar = 1 cm

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