page_title: Nemegtosauridae
section_title: Phylogeny
hierarchical_section_title: Nemegtosauridae / Phylogeny
caption_attribution_description: Skull of Tapuiasaurus macedoi, gen. n. sp. n. Photographs and half-tone drawings of the skull of the holotype MZSP-PV 807 in right lateral view (A), left lateral view (B), dorsal view (C), and occipital view (D). Abbreviations: an, angular; aof, antorbital fenestra; ar, articular; asaf, anterior surangular foramen; atl, atlas; bt, basal tubera; bptp, basipterygoid process; d, dentary; ect, ectopterygoid; en, external nares; f, frontal; fm, forame magnum; itf, infratemporal fenestra; j, jugal; l, lacrimal; ls, latrosphenoid; m, maxilla; n, nasal; oc, occipital condyle; os, orbitosphenoid; p, parietal; paof, preantorbital fenestra; pf, prefrontal; pl, palatine; pm, premaxilla; po, postorbital; pp, paroccipital process; psaf, posterior surangular foramen; pt, pterygoid; q, quadrate; qf, quadrate foramen; qj, quadratojugal; sa, surangular; sf, subnarial foramen; soc, supraoccipital; sq, squamosal; sr, sclerotic ring; stf, supratemporal fenestra. Scale bar represents 10 cm.
context_page_description: Nemegtosauridae is a family of titanosaurian sauropod dinosaurs based on their diplodocid-like skulls. Only three species are known: Nemegtosaurus, Quaesitosaurus and Tapuiasaurus, each from the Cretaceous.
context_section_description: The cladogram below follows Zaher et al. (2011).
caption: Skull material of Tapuiasaurus
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