Dinos 2023: Dinosaurs Wall Calendar

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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] Yates, Adam M.; Ristevski, Jorgo; Salisbury, Steven W. (2023). "The last Baru (Crocodylia, Mekosuchinae): a new species of 'cleaver‐headed crocodile' from central Australia and the turnover of crocodylians during the Late Miocene in Australia". Papers in Palaeontology. 9 (5). doi: 10.1002/spp2.1523. ISSN 2056-2799. S2CID 262592438. A new year means new free printable 2023 calendars! I’m so excited to share with you some fresh freebies for 2023 and I hope you love them as much as we do!

Dinosaur Advent Calendar - Etsy UK Dinosaur Advent Calendar - Etsy UK

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]Ksepka & Tennyson (2023) report the discovery of the humerus of a probable stem gannet from the Hurupi Formation, representing the oldest record of a sulid from New Zealand reported to date. [273] Osteological comparisons and historical accounts of recently extinct island night herons are presented by Hume (2023). [275] The holotype of Mamenchisaurus sinocanadorum is redescribed by Moore et al. (2023), who also interpret Bellusaurus and Daanosaurus as juvenile mamenchisaurids. [160] An egg belonging to a flamingo from the Pleistocene of Mexico is described by Cruz et al. (2023). [267]

Dinosaur Calendar 2023 - Etsy UK Dinosaur Calendar 2023 - Etsy UK

A study on possible effects of climate, body size and diet on the survival of terrestrial notosuchians during the Cretaceous–Paleogene extinction event is published by Aubier et al. (2023), who find evidence of increase in body size during the Late Cretaceous which may be related to the shift from omnivorous to carnivorous diet, but find the studied data insufficient to list definitive reasons for the survival of sebecids into the Cenozoic. [27] Carr (2023) redescribes the hindlimb of the lectotype of Alectrosaurus olseni, describes a partial tyrannosauroid skull from the Iren Dabasu Formation (China) with similarities to skulls of Raptorex kriegsteini and juvenile Tyrannosaurus rex, and questions the assignment of fossil material from Mongolia and Uzbekistan to the genus Alectrosaurus. [123] A study on the endocranial morphology of Liaoceratops yanzigouensis is published by Yang et al. (2023), who find that the brain, olfactory bulb and inner ear of Liaoceratops more closely resemble those observed in Psittacosaurus than those in more derived ceratopsians. [203] Johnson, M. M.; Amson, E.; Maxwell, E. E. (2023). "Evaluating growth in Macrospondylus bollensis (Crocodylomorpha, Teleosauroidea) in the Toarcian Posidonia Shale, Germany". Papers in Palaeontology. 9 (5). e1529. doi: 10.1002/spp2.1529.A study on the relationship between osteoderm relative area of pits and terrestrial or aquatic lifestyle in extant and extinct crocodyliforms, indicating that taxa with lower the degree of ornamentation were more likely to be terrestrial, is published by de Araújo Sena & Cubo (2023). [20] Zelenkov & Arkhangelsky (2023) describe new fossil material of Campanian hesperornithids from the Karyakino locality ( Saratov Oblast, Russia), including the first femur of Hesperornis rossicus. [252] Galton (2023) describes a right sternal bone of a specimen of Stegosaurus from the Carnegie Quarry at Dinosaur National Monument ( Morrison Formation; Utah, United States) and reevaluates three putative sternal bones from Como Bluff ( Wyoming, United States) described by Gilmore (1914), [184] arguing that they are neither sternal bones nor fossils of Stegosaurus. [185]