File:Erlikosaurus and Halszkaraptor skull (cropped).png

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English: Figure 1: Comparison between the skull of the therizinosaurid Erlikosaurus andrewsi (MPC D-100/111: A and C) and the paravian Halszkaraptor escuilliei (MPC D-102/109: B and D), in left lateral (A and B) and dorsal (C and D) views. Key differences in snout morphology: prenarial part of premaxilla taller than long (a1) or longer than tall (a2); platyrostral condition produced by perinarial widening (b1) or prenarial flattening (b2); complete loss of premaxillary dentition (c1) or supranumerary premaxillary dentition (c2); maxillary dentition lacking replacement waves (d1), or bearing distinct replacement waves (d2); narial fossa widely overlapping premaxillary oral margin (e1) or narial fossa not overlapping premaxillary oral margin. Scale bars in mm. (A) and (C) Provided by Stephan Lautenschlager (used with permission).
Date
Source (2020). "The body plan of Halszkaraptor escuilliei (Dinosauria, Theropoda) is not a transitional form along the evolution of dromaeosaurid hypercarnivory". PeerJ 8: e8672. DOI:10.7717/peerj.8672. PMID 32140312. PMC: 7047864.
Author Andrea Cau
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25 February 2020

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Date/TimeThumbnailDimensionsUserComment
current03:35, 30 May 2020Thumbnail for version as of 03:35, 30 May 20201,275 × 1,133 (1.28 MB)PaleoNeolitic{{Information |description ={{en|1='''Figure 1: Comparison between the skull of the therizinosaurid ''Erlikosaurus andrewsi'' (MPC D-100/111: A and C) and the paravian ''Halszkaraptor escuilliei'' (MPC D-102/109: B and D), in left lateral (A and B) and dorsal (C and D) views.''' Key differences in snout morphology: prenarial part of premaxilla taller than long (a1) or longer than tall (a2); platyrostral condition produced by perinarial widening (b1) or prenarial flattening (b2); complete lo...
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