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Swiss Journal of Palaeontology
Fig. 10 | Swiss Journal of Palaeontology

Fig. 10

From: Taphonomy and palaeoecology of the green Devonian gypidulid brachiopods from the Aferdou El Mrakib, eastern Anti-Atlas, Morocco

Fig. 10

Shell colour and shell thickness. a Correlation of the green shell colour (RGB green values, measured in PhotoShop) with the distance from the surface in the Stringocephalus sp., Devognogypa sp., Ivdelinia pulchra, and undetermined rhynchonellid brachiopod specimens from Germany and Morocco. b Devonogypa sp., PIMUZ 30141, Givetian mound facies of the northwestern flank of Aferdou El Mrakib, Maïder, Morocco. Note the change in colour from the umbo, where the shell is the thickest, to the commissure, where the shell has the lowest thickness

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