Basal Amniotes

DESCRIPTION

Mon. Marsu. mammary gland. Synapsids. alpha keratins. pilosebaceous unit. Mammals (Eutherians). Mammaliaforms. Basal Amniotes. Lizards, Snakes. Lepidosaurs. reticula. alpha keratins. beta keratins alpha keratins. Sauropsids. Dinosaurs. Birds. Archosaurs.

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Mar 18, 2014

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Basal Amniotes

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Mon. Marsu. mammary gland Synapsids alpha keratins pilosebaceous unit Mammals (Eutherians) Mammaliaforms Basal Amniotes Lizards, Snakes Lepidosaurs reticula alpha keratins beta keratins alpha keratins Sauropsids Dinosaurs Birds Archosaurs alpha keratins -- beta keratins feather Theropods scuta Crocodiles Figure 7 Iconographer : Brigitte Peyrusse