Dinos 2023: Dinosaurs Wall Calendar

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Description of new fossil material of itasuchid crocodyliforms from the Upper Cretaceous Bauru Group ( Brazil) is published by Pinheiro et al. (2023), who also confirm the monophyly of Itasuchidae with some variation in its content, and find the South American itasuchid species to occupy a crocodyliform morphospace, possibly indicating distinct niche occupations. [31] A study on the affinities of "Tupuxuara" deliradamus is published by Cerqueira, Müller & Pinheiro (2023), who interpret this pterosaur as a tapejarine. [306] Redescription of the anatomy of the skull of Irritator challengeri and a study on the affinities of this spinosaurid is published by Schade et al. (2023). [111] Pellets and a fragmentary beak of a barn owl from the Holocene of Socotra Island ( Yemen) are reported by Ramello et al. (2023). [278] Jagielska et al. (2023) describe a non-pterodactyloid pterosaur specimen from the Bathonian Lealt Shale ( Isle of Skye, Scotland, United Kingdom), preserving metatarsal and caudal vertebrae which are considerably larger than corresponding bones in the holotype of Dearc sgiathanach. [294]

Dinosaur Calendar 2023 - Etsy

Acosta Hospitaleche, O'Gorman & Panzeri (2023) describe a partial ulna of a bird (comparable in size with ulnae of the coscoroba swan or the southern screamer) from the Maastrichtian La Colonia Formation (Argentina), showing similarities to ulnae of members of Anseriformes and possibly representing the first record of a neornithine from the La Colonia Formation. [257] Darlim, G.; Suraprasit, K.; Chaimanee, Y.; Tian, P.; Yamee, C.; Rugbumrung, M.; Kaweera, A.; Rabi, M. (2023). "An extinct deep-snouted Alligator species from the Quaternary of Thailand and comments on the evolution of crushing dentition in alligatorids". Scientific Reports. 13 (1). 10406. Bibcode: 2023NatSR..1310406D. doi: 10.1038/s41598-023-36559-6. PMC 10344928. PMID 37443318.

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A study on the taxonomic diversity, phylogenetic relationships and evolutionary history of Australasian crocodyliforms is published by Ristevski et al. (2023). [37] A study comparing the sternal anatomy of 60 different pterosaur species is published by Hone (2023). [290] The impact of including fossil taxa on inferring the ancestral morphology of the quadrate in Galloanserae is studied by Kuo, Benson & Field (2023). [262]

Dinosaur Calendar - Etsy Dinosaur Calendar - Etsy

Clark et al. (2023) attempt to determine the dietary habits of longipterygids, reporting dental features indicative of carnivory, with additional support for insectivory. [250]Amudeo-Plaza et al. (2023) interpret a theropod tooth from the Cretaceous (Albian-Turonian) Quebrada La Totora Beds as the first record of an abelisaurid from Chile. [103] Revision of the fossil record of thalattosuchians from the Jurassic Rosso Ammonitico Veronese ( Italy), as well as description of three new metriorhynchoid specimens (including a specimen from the upper Bajocian-upper Bathonian of Cima del Porco representing one of the oldest known metriorhynchids, and a Bajocian specimen which might have beaan a metriorhynchid or a closely related metriorhynchoid), is published by Serafini et al. (2023). [24] A study on the long bone histology of Muyelensaurus pecheni and Rinconsaurus caudamirus is published by González et al. (2023), who find no evidence of a correlation between the ontogenetic stage and the body size in both taxa, unlike in other neosauropods. [173] A juvenile sauropod specimen, most closely resembling early-diverging eusauropods from the Middle Jurassic but sharing some derived features with the Late Jurassic mamenchisaurids and neosauropods, is described from the Middle Jurassic Dongdaqiao Formation (East Tibet, China) by An et al. (2023). [159]