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Fig. 8 | BMC Evolutionary Biology

Fig. 8

From: Internal cranial anatomy of Early Triassic species of †Saurichthys (Actinopterygii: †Saurichthyiformes): implications for the phylogenetic placement of †saurichthyiforms

Fig. 8

Basicranial circulation of †Saurichthys sp. (NHMD_157546_A); a digital rendering of brain and osseus labyrinth endocasts, with major cranial nerves in yellow, arterial canals in red and venal canals in blue; b Simplified schematic of skull in lateroventral view showing the passage of major blood vessels. Abbreviations: aci, common branch of internal carotid artery; acv, anterior cerebral vein; aorb, orbital artery; apal, palatine artery (parabasal canal); eps, efferent pseudobranchial artery; ccar, common carotids; ica, ascending branch of internal carotid; jc, jugular canal; jv, jugular vein; mcv, mid-cerebral vein; oph, ophthalmic artery. Scale bars equal 0.5 cm

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