File:Distribution of characters associated with fossoriality within Thescelosauridae.webp
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Summary
| Description | Distribution of characters associated with fossoriality within Thescelosauridae. Simplified time-scaled phylogeny of the Thescelosauridae, after45,46, with the positions of taxa of more labile placement in the clade indicated by dotted lines (cf. with44). Taxon stratigraphic ranges (see "Methods") indicated by thick lines. Taxon silhouettes and known material from parts of the skeleton bearing discussed characters (skull, pectoral girdle, forelimb, pelvis, hindlimb) are illustrated. Distribution of the following characters and pieces of evidence consistent with fossorial habits (see22,73,89,97,121,122 and main text) are indicated. Cranial (1–5): premaxillary fusion (1), reduced EQ (2), large olfactory bulbs (3), enlarged ASC (4), limited hearing range (5). Scapulacoracoid (6–9): fusion of scapula and coracoid (6), well-developed acromion (7), scapular spine (8), prominent posteroventral expansion of scapular blade (9). Pelvis and hindlimb (10–12): seven sacral vertebrae (10), pubosacral articulation (11), reduced cursoriality (12). Occurrence evidence (13–14): body fossils preserved in burrows (13), sedimentological evidence (14). Gross orodromine body shape broadly follows89,173, with specific reconstruction and illustrated skeletal anatomy of Changchunsaurus following39; Oryctodromeus22,89,122; Koreanosaurus97, with the holotype and paratype assumed to belong to a single individual after97; Haya45; Orodromeus73,173; and Zephyrosaurus47, with postcranial elements reconstructed after those of Orodromeus73,173. Parksosaurus anatomy follows45. Thescelosaurus is reconstructed primarily from NCSM 15728 but with additional anatomical data and maximum estimated length from31. Character coding follows22,39,45,46,47,48,73,74,89,97,121,122 and discussion in the main text. Oro = Orodrominae. Scale bar for silhouettes = 1 m. |
| Date | |
| Source | https://www.nature.com/articles/s41598-023-45658-3 |
| Author | David J. Button and Lindsay E. Zanno |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 20:28, 26 October 2024 | | 1,500 × 1,440 (129 KB) | FunkMonk | {{Information |Description=Distribution of characters associated with fossoriality within Thescelosauridae. Simplified time-scaled phylogeny of the Thescelosauridae, after45,46, with the positions of taxa of more labile placement in the clade indicated by dotted lines (cf. with44). Taxon stratigraphic ranges (see "Methods") indicated by thick lines. Taxon silhouettes and known material from parts of the skeleton bearing discussed characters (skull, pectoral girdle, forelimb, pelvis, hindlimb)... |
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