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. 2012 Nov 27;7(11):e49911. doi: 10.1371/journal.pone.0049911

Figure 16. Megalocoelacanthus dobiei Schwimmer, Stewart & Williams, 1994, AMNH FF 20267 from lower Campanian of the Niobrara Formation.

Figure 16

A, basibranchial and basibranchial tooth plate in dorsal view (top), and ventral view (bottom). B, urohyal in dorsal view (top), and ventral view (bottom). Abbreviations: a.t.p.Bb, anterior tooth plate of the basibranchial; art.Cb1, surface for articulation with the first ceratobranchial; art.Cb2, surface for articulation with the second ceratobranchial; art.Ch, surface for articulation with the ceratohyal; art.Uhy, surface for articulation with the urohyal; Bb, basibranchial; p.t.p.Bb, posterior tooth plate of the basibranchial. Scale bar  = 5 cm.