Sinosauropterygidae
| Sinosauropterygidae Temporal range: Early Cretaceous,
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| Holotype specimen of Sinosauropteryx prima, Inner Mongolia Museum | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Coelurosauria |
| Family: | †Sinosauropterygidae Ji & Ji, 1996 |
| Genera | |
Sinosauropterygidae is an extinct family of coelurosaurian theropod dinosaurs mainly known from the Early Cretaceous Jehol Biota of China.
History
[edit]Originally named in 1996, this family was erected as a monotypic family containing Sinosauropteryx.[1] Although it was later thought to be synonymous with the family Compsognathidae, several researchers subsequently argued against the putative monophyly of compsognathids. Some recovered Compsognathidae as a paraphyletic group of coelurosaurian theropods,[2] while others recovered it as a polyphyletic group and argued that some characteristics supporting the supposed monophyly of this family might be ontogenetically variable, since most taxa assigned to Compsognathidae are known from juveniles.[3][4][5] Qiu et al. (2025) also argued against the monophyly of Compsognathidae and supported the validity of Sinosauropterygidae in their description of the second species of Sinosauropteryx and the new genus of sinosauropterygid Huadanosaurus.[6]
Classification
[edit]The family Sinosauropterygidae was originally placed within Aves as a family of the proposed order Sinosauropterygiformes.[1] Qiu et al. (2025) revised the definition of the monophyletic Sinosauropterygidae within Coelurosauria as a family containing all compsognathid-like theropods from the Jehol Biota of China: Sinosauropteryx, Huadanosaurus, Huaxiagnathus and Sinocalliopteryx. In all of their phylogenetic analyses reproduced below, Mirischia from Brazil was also recovered as a member of this family:[6]
References
[edit]- ^ a b Ji, Q.; Ji, S. (1996). "On the discovery of the earliest bird fossil in China (Sinosauropteryx gen. nov.) and the origin of birds" (PDF). Chinese Geology. 10 (233): 30–33.
- ^ Hendrickx, Christophe; Mateus, Octávio (2014). "Abelisauridae (Dinosauria: Theropoda) from the Late Jurassic of Portugal and dentition-based phylogeny as a contribution for the identification of isolated theropod teeth". Zootaxa. 3759: 1–74. doi:10.11646/zootaxa.3759.1.1. PMID 24869965. S2CID 12650231.
- ^ Rauhut, Oliver W. M.; Foth, Christian; Tischlinger, Helmut; Norell, Mark A. (17 July 2012). "Exceptionally preserved juvenile megalosauroid theropod dinosaur with filamentous integument from the Late Jurassic of Germany". Proceedings of the National Academy of Sciences of the United States of America. 109 (29): 11746–11751. Bibcode:2012PNAS..10911746R. doi:10.1073/pnas.1203238109. PMC 3406838. PMID 22753486.
- ^ Rauhut, Oliver W.M.; Foth, Christian (2020-03-11). "3 – The Origin of Birds: Current Consensus, Controversy, and the Occurrence of Feathers". In Foth, Christian; Rauhut, Oliver W.M. (eds.). The Evolution of Feathers: From Their Origin to the Present. Springer Nature. pp. 27–45. doi:10.1007/978-3-030-27223-4_3. ISBN 978-3-030-27223-4. S2CID 216372010.
- ^ a b Cau, Andrea (2024). "A Unified Framework for Predatory Dinosaur Macroevolution" (PDF). Bollettino della Società Paleontologica Italiana. 63 (1): 1–19. doi:10.4435/BSPI.2024.08 (inactive 2024-11-20). ISSN 0375-7633.
{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link) - ^ a b Qiu, Rui; Wang, Xiaolin; Jiang, Shunxing; Meng, Jin; Zhou, Zhonghe (2025-02-22). "Two new compsognathid-like theropods show diversified predation strategies in theropod dinosaurs". National Science Review. doi:10.1093/nsr/nwaf068. ISSN 2095-5138.
- ^ Brusatte, Stephen L.; Lloyd, Graeme T.; Wang, Steve C.; Norell, Mark A. (2014-10-20). "Gradual Assembly of Avian Body Plan Culminated in Rapid Rates of Evolution across the Dinosaur-Bird Transition". Current Biology. 24 (20): 2386–2392. doi:10.1016/j.cub.2014.08.034.