Iyuku raathi, a new iguanodontian dinosaur from the Early Cretaceous Kirkwood Formation, South Africa.

Autor: Forster CA; Department of Biological Sciences, The George Washington University, Washington, District of Columbia, USA., de Klerk WJ; Department of Geology, Rhodes University, Makhanda, South Africa.; Department of Earth Sciences, Albany Museum, Makhanda, South Africa., Poole KE; Department of Basic Sciences, New York Institute of Technology College of Osteopathic Medicine at Arkansas State University, Jonesboro, Arkansas, USA., Chinsamy-Turan A; Zoology Department, University of Cape Town, Cape Town, South Africa.; Earth Sciences Division, South African Museum, Cape Town, South Africa., Roberts EM; School of Earth and Environmental Sciences, James Cook University, Townsville, Queensland, Australia., Ross CF; Department of Organismal Biology, University of Chicago, Chicago, Illinois, USA.
Jazyk: angličtina
Zdroj: Anatomical record (Hoboken, N.J. : 2007) [Anat Rec (Hoboken)] 2023 Jul; Vol. 306 (7), pp. 1762-1803. Date of Electronic Publication: 2022 Jul 21.
DOI: 10.1002/ar.25038
Abstrakt: We name and describe a new iguanodontian dinosaur from the Early Creteceous Kirkwood Formation, Eastern Cape Province, South Africa. This dinosaur is one of only two ornithopod dinosaurs known from the Cretaceous of southern Africa, and is unique in being represented primarily by hatchling to young juvenile individuals as demonstrated by bone histological analysis. All of the juvenile material of this new taxon comes from a single, laterally-restricted bonebed and specimens were primarily recovered as partial to complete single elements, although rare articulated materials and one partial skeleton were found. Sedimentology of the bonebed suggests that this horizon heralds a change in environment upsection to a drier and more seasonal climate. This accumulation of bones is interpreted as seasonal mortality from a nesting site or nesting grounds and may be linked to this environmental shift.
(© 2022 American Association for Anatomy.)
Databáze: MEDLINE
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