Dinos 2023: Dinosaurs Wall Calendar

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This article records new taxa of every kind of fossil archosaur that are scheduled to be described during 2023, as well as other significant discoveries and events related to the paleontology of archosaurs that will be published in 2023. A study on the biomechanical properties of the skull of Riojasuchus tenuisceps is published by Taborda, Von Baczko & Desojo (2023), who propose that R. tenuisceps could have had a wading habit, feeding on small-sizey prey caught from the shoreline. [12] a b Sennikov, A. G. (2022). "A New Pseudosuchian from the Early Triassic of Eastern Europe". Paleontological Journal. 56 (11): 1391–1418. doi: 10.1134/S0031030122110168. S2CID 256618821. Martins, K. C.; Queiroz, M. V.; Ruiz, J. V.; Langer, M. C.; Montefeltro, F. C. (2023). "A new Baurusuchidae (Notosuchia, Crocodyliformes) from the Adamantina Formation (Bauru Group, Upper Cretaceous), with a revised phylogenetic analysis of Baurusuchia". Cretaceous Research. 153. 105680. doi: 10.1016/j.cretres.2023.105680. S2CID 261182849. Czepiński (2023) describes a specimen of Shri devi with a partial skull from the Upper Cretaceous Barun Goyot Formation ( Mongolia), and reports that the anatomy of the skull confirms close affinities of Shri with Velociraptor mongoliensis, but also that the skull has anatomical features suggesting convergence to the North American eudromaeosaurians. [145]

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Description of new hadrosaurid fossils from the Upper Cretaceous Kakanaut Formation (Chukotka, Russia) and a study on their histology is published by Bapinaev et al. (2023), who interpret the studied fossils as possibly indicative of the presence of two hadrosaurid taxa in the Kakanaut fauna, and interpret the histology of the studied bones as possibly indicating that Arctic hadrosaurids of Chukotka were year-round residents of polar ecosystems. [196] Pellets and a fragmentary beak of a barn owl from the Holocene of Socotra Island ( Yemen) are reported by Ramello et al. (2023). [278] An enantiornithine specimen from the La Huérguina Formation closely resembling Concornis is described by Nebreda et al. (2023). [244] Aureliano et al. (2023) present the criteria which can be used to distinguish between lamellar bone fibres, Sharpey's fibres (tendon insertions) and air sac attachments in the bones of fossil archosaurs. [316] Ishikawa, H.; Tsuihiji, T.; Manabe, M. (2023). " Furcatoceratops elucidans, a new centrosaurine (Ornithischia: Ceratopsidae) from the upper Campanian Judith River Formation, Montana, USA". Cretaceous Research. 151. 105660. Bibcode: 2023CrRes.15105660I. doi: 10.1016/j.cretres.2023.105660. S2CID 260046917.Pochat-Cottilloux, Y.; Rinder, N.; Perrichon, G.; Adrien, J.; Amiot, R.; Hua, S.; Martin, J. E. (2023). "The neuroanatomy and pneumaticity of Hamadasuchus (Crocodylomorpha, Peirosauridae) from the Cretaceous of Morocco and its paleoecological significance for altirostral forms". Journal of Anatomy. 243 (3): 374–393. doi: 10.1111/joa.13887. PMC 10439374. PMID 37309776. S2CID 259148269. Description of the pectoral girdle morphology and histology in Hamipterus, providing evidence of both the similarities and differences between the flight apparatus of pterosaurs and birds, is published by Wu et al. (2023). [300] Puértolas-Pascual, E.; Kuzmin, I. T.; Serrano-Martínez, A.; Mateus, O. (2023). "Neuroanatomy of the crocodylomorph Portugalosuchus azenhae from the Late Cretaceous of Portugal". Journal of Anatomy. 242 (6): 1146–1171. doi: 10.1111/joa.13836. PMC 10184551. PMID 36732084. S2CID 256546983. Manitkoon, Sita; Deesri, Uthumporn; Khalloufi, Bouziane; Nonsrirach, Thanit; Suteethorn, Varavudh; Chanthasit, Phornphen; Boonla, Wansiri; Buffetaut, Eric (2023). "A New Basal Neornithischian Dinosaur from the Phu Kradung Formation (Upper Jurassic) of Northeastern Thailand". Diversity. 15 (7): 851. doi: 10.3390/d15070851.

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A study on the histology of long bones of Lutetodontopteryx tethyensis and cf. Dasornis sp. from the Eocene ( Lutetian) locality Ikove ( Luhansk Oblast) is published by Dobrovolsky (2023). [264] Changes in body size of birds from the Yucatán peninsula since the Late Pleistocene are documented by Silva‐Martínez et al. (2023). [261]Yoshida, Kobayashi & Norell (2023) report the discovery of fossilized larynx of a specimen of Pinacosaurus grangeri from the Campanian of Ukhaa Tolgod ( Mongolia), and interpret its anatomy as indicating that Pinacosaurus might have been capable of vocalization and, like extant birds, might have possessed a non-laryngeal vocal source and used larynx as a sound modifier. [187] Teschner, E. M.; Konietzko-Meier, D.; Desojo, J. B.; Schoch, R. R.; Klein, N. (2023). "Triassic Nursery? Evidence of gregarious behavior in juvenile pseudosuchian archosaurs as inferred by humeral histology of Aetosaurus ferratus (Norian; southern Germany)". Journal of Vertebrate Paleontology. 42 (2). e2168196. doi: 10.1080/02724634.2023.2168196. S2CID 256864004. The first known phorusrhacid footprints are described from the Río Negro Formation ( Argentina) by Melchor et al. (2023), who name a new ichnotaxon Rionegrina pozosaladensis, and interpret the studied footprints as indicative of a primary role of digit III, secondary role of digit IV and a reduced role of digit II in body weight support. [279]