Fig. 4: Hypotheses of the phylogenetic affinities of parviraptorids and braincase morphology of NMS G.2023.7.1.
a, Summary of phylogenetic results provided in Extended Data Figs. 8–10, with general topology adopted from Extended Data Fig. 8a (Iguania, Anguimorpha and Serpentes form a polytomy in other analyses). The phylogenetic positions of Parviraptoridae returned by analyses of Datasets 1 (modified from ref. 3), 2 (modified from ref. 6) and 3 (modified from ref. 47) are indicated by stars. Dataset 3a refers to results from Dataset 3 when Anguimorpha and Serpentes are constrained as sister taxa (Extended Data Fig. 9a), Datasets 3b and 3c refer to results when Iguania plus Anguimorpha and Iguania plus Serpentes, respectively, are constrained as sister taxa (Extended Data Figs. 9b and 10). b,c, Digital render of the braincase of NMS G.2023.7.1 in posterior (b) and left lateral (c) views. Scale bar, 5 mm. Silhouettes were obtained from Phylopic (https://www.phylopic.org/) under a CC0 1.0 Universal Public Domain licence: Gymnodactylus geckoides created by J. C. Arenas-Monroy (https://www.phylopic.org/images/11729fc4-30d2-40bf-a5a3-fd490a74589e/gymnodactylus-geckoides) and Crotalus viridis, created by B. Perry (https://www.phylopic.org/images/b58a7ca7-8d14-4d7b-88a5-f2b05de79c85/crotalus-viridis).
