Heterodontosaurids: Bizarre Fanged Herbivorous Dinosaurs

Please enjoy this episode focusing on the Heterodontosaurids, a family of unusual and often very small basal Ornithischians that possessed strikingly differentiated teeth and fuzzy coats. https://www.patreon.com/c/DrPolaris Thumbnail art shows Heterodontosaurid model by Paul Sereno et.al. Sources used for this episode: Barrett, Paul M.; Evans, David C.; Campione, Nicolás E. (2015-06-30). "Evolution of dinosaur epidermal structures". Biology Letters. 11 (6) 20150229. doi:10.1098/rsbl.2015.0229. PMC 4528472. PMID 26041865. Becerra, M.C.; Pol, D.; Rauhut, O.W.M.; Cerda, I.A. (2016). "New heterodontosaurid remains from the Cañadón Asfalto Formation: cursoriality and the functional importance of the pes in small heterodontosaurids". Journal of Paleontology. 90 (3): 555–577. Bibcode:2016JPal...90..555B. doi:10.1017/jpa.2016.24. hdl:11336/117485. S2CID 56436933. Benson, Robert B. J.; Hunt, Gene; Carrano, Matthew T.; Campione, Nicolás (21 October 2017). "Cope's rule and the adaptive landscape of dinosaur body size evolution". Palaeontology. 61 (1): 13–48. Bibcode:2018Palgy..61...13B. doi:10.1111/pala.12329. Butler, Richard J.; Porro, Laura B.; Norman, David B. (2008). "A juvenile skull of the primitive ornithischian dinosaur Heterodontosaurus tucki from the 'Stormberg' of southern Africa". Journal of Vertebrate Paleontology. 28 (3): 702–711. doi:10.1671/0272-4634(2008)28[702:AJSOTP]2.0.CO;2. ISSN 0272-4634. S2CID 86739244. Butler, Richard J.; Galton, Peter M.; Porro, Laura B.; Chiappe, Luis M.; Henderson, D. M.; Erickson, Gregory M. (2010). "Lower limits of ornithischian dinosaur body size inferred from a new Upper Jurassic heterodontosaurid from North America". Proceedings of the Royal Society B. 277 (1680): 375–381. doi:10.1098/rspb.2009.1494. PMC 2842649. PMID 19846460. Dieudonné, P.E.; Cruzado-Caballero, P.; Godefroit, P.; Tortosa, T. (2020). "A new phylogeny of cerapodan dinosaurs". Historical Biology. 33 (10): 2335–2355. doi:10.1080/08912963.2020.1793979. Dieudonné, Paul‐Emile; Becerra, Marcos Gabriel; Zanesco, Tábata; Tortosa, Thierry; Cruzado‐Caballero, Penélope; Stein, Koen; Torcida Fernández‐Baldor, Fidel (January 2026). "Foskeia pelendonum , a new rhabdodontomorph from the Lower Cretaceous of Salas de los Infantes (Burgos Province, Spain), and a new phylogeny of ornithischian dinosaurs". Papers in Palaeontology. 12 (1). doi:10.1002/spp2.70057. ISSN 2056-2799. Fonseca, A.O.; Reid, I.J.; Venner, A.; Duncan, R.J.; Garcia, M.S.; Müller, R.T. (2024). "A comprehensive phylogenetic analysis on early ornithischian evolution". Journal of Systematic Palaeontology. 22 (1) 2346577. Bibcode:2024JSPal..2246577F. doi:10.1080/14772019.2024.2346577. Galton, P.M. (2014). "Notes on the postcranial anatomy of the heterodontosaurid dinosaur Heterodontosaurus tucki, a basal ornithischian from the Lower Jurassic of South Africa" (PDF). Revue de Paléobiologie, Genève. 1. 33: 97–141. ISSN 1661-5468. Norman, David B.; Barrett, Paul M. (2002). "Ornithischian dinosaurs from the Lower Cretaceous (Berriasian) of England". In Milner, Andrew; Batten, David J. (eds.). Life and Environments in Purbeck Times. Special Papers in Palaeontology 68. London: Palaeontological Association. pp. 161–189. ISBN 978-0-901702-73-9. Pol, D.; Rauhut, O.W.M.; Becerra, M. (2011). "A Middle Jurassic heterodontosaurid dinosaur from Patagonia and the evolution of heterodontosaurids". Naturwissenschaften. 98 (5): 369–379. Bibcode:2011NW.....98..369P. doi:10.1007/s00114-011-0780-5. PMID 21452054. S2CID 22636871. Sereno, Paul C. (2012). "Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs". ZooKeys (226): 1–225. doi:10.3897/zookeys.226.2840. PMC 3491919. PMID 23166462. Zheng, Xiao-Ting; You, Hai-Lu; Xu, Xing; Dong, Zhi-Ming (19 March 2009). "An Early Cretaceous heterodontosaurid dinosaur with filamentous integumentary structures". Nature. 458 (7236): 333–336. Bibcode:2009Natur.458..333Z. doi:10.1038/nature07856. PMID 19295609. S2CID 4423110.