{"title":"布宜诺斯艾利斯省(阿根廷)上更新世(卢扬地层)Glyptodon sp.(Xenarthra, Cingulata)尾椎骨的病理学研究","authors":"","doi":"10.1016/j.jsames.2024.105061","DOIUrl":null,"url":null,"abstract":"<div><p>The paleontological collection of the Museo Municipal de Ciencias Naturales “Carlos Ameghino” (MCA, Mercedes, Buenos Aires Province, Argentina) includes hundreds of mammalian fossil specimens collected from the Luján Formation (Lujanian Stage/Age), bounded to the Late Pleistocene/Early Holocene. Among the specimens of the MCA collection, a caudal vertebra (MCA-117) of <em>Glyptodon</em> sp. (Xenarthra, Cingulata) with pathologies was identified, which are here characterized in order to perform a diagnosis. The main alterations in the vertebra consist of bone erosion and remodeling in the left transverse process, bone erosion in the vertebral centrum, and deformation in the neural arch affecting the prezygapophyses. The features identified in the transverse process were diagnosed as bone remodeling, alterations previously described for Pleistocene xenarthrans. The erosions observed in the vertebral centrum are comparable to spondylosis, Schmorl's node, intervertebral discopathies, or, alternatively, calcium pyrophosphate deposition disease. Nonetheless, these could potentially manifest as secondary complications arising from spondylosis. Regarding characteristics such as low bone density, it is concluded that they are indicative of modifications due to osteoporosis. The alterations present in the specimen can be compared with bone pathologies recognized in elderly individuals with large body mass.</p></div>","PeriodicalId":50047,"journal":{"name":"Journal of South American Earth Sciences","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pathology on caudal vertebra of Glyptodon sp. (Xenarthra, Cingulata) from the Upper Pleistocene (Luján Formation) of Buenos Aires province (Argentina)\",\"authors\":\"\",\"doi\":\"10.1016/j.jsames.2024.105061\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The paleontological collection of the Museo Municipal de Ciencias Naturales “Carlos Ameghino” (MCA, Mercedes, Buenos Aires Province, Argentina) includes hundreds of mammalian fossil specimens collected from the Luján Formation (Lujanian Stage/Age), bounded to the Late Pleistocene/Early Holocene. Among the specimens of the MCA collection, a caudal vertebra (MCA-117) of <em>Glyptodon</em> sp. (Xenarthra, Cingulata) with pathologies was identified, which are here characterized in order to perform a diagnosis. The main alterations in the vertebra consist of bone erosion and remodeling in the left transverse process, bone erosion in the vertebral centrum, and deformation in the neural arch affecting the prezygapophyses. The features identified in the transverse process were diagnosed as bone remodeling, alterations previously described for Pleistocene xenarthrans. The erosions observed in the vertebral centrum are comparable to spondylosis, Schmorl's node, intervertebral discopathies, or, alternatively, calcium pyrophosphate deposition disease. Nonetheless, these could potentially manifest as secondary complications arising from spondylosis. Regarding characteristics such as low bone density, it is concluded that they are indicative of modifications due to osteoporosis. The alterations present in the specimen can be compared with bone pathologies recognized in elderly individuals with large body mass.</p></div>\",\"PeriodicalId\":50047,\"journal\":{\"name\":\"Journal of South American Earth Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of South American Earth Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0895981124002839\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of South American Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0895981124002839","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Pathology on caudal vertebra of Glyptodon sp. (Xenarthra, Cingulata) from the Upper Pleistocene (Luján Formation) of Buenos Aires province (Argentina)
The paleontological collection of the Museo Municipal de Ciencias Naturales “Carlos Ameghino” (MCA, Mercedes, Buenos Aires Province, Argentina) includes hundreds of mammalian fossil specimens collected from the Luján Formation (Lujanian Stage/Age), bounded to the Late Pleistocene/Early Holocene. Among the specimens of the MCA collection, a caudal vertebra (MCA-117) of Glyptodon sp. (Xenarthra, Cingulata) with pathologies was identified, which are here characterized in order to perform a diagnosis. The main alterations in the vertebra consist of bone erosion and remodeling in the left transverse process, bone erosion in the vertebral centrum, and deformation in the neural arch affecting the prezygapophyses. The features identified in the transverse process were diagnosed as bone remodeling, alterations previously described for Pleistocene xenarthrans. The erosions observed in the vertebral centrum are comparable to spondylosis, Schmorl's node, intervertebral discopathies, or, alternatively, calcium pyrophosphate deposition disease. Nonetheless, these could potentially manifest as secondary complications arising from spondylosis. Regarding characteristics such as low bone density, it is concluded that they are indicative of modifications due to osteoporosis. The alterations present in the specimen can be compared with bone pathologies recognized in elderly individuals with large body mass.
期刊介绍:
Papers must have a regional appeal and should present work of more than local significance. Research papers dealing with the regional geology of South American cratons and mobile belts, within the following research fields:
-Economic geology, metallogenesis and hydrocarbon genesis and reservoirs.
-Geophysics, geochemistry, volcanology, igneous and metamorphic petrology.
-Tectonics, neo- and seismotectonics and geodynamic modeling.
-Geomorphology, geological hazards, environmental geology, climate change in America and Antarctica, and soil research.
-Stratigraphy, sedimentology, structure and basin evolution.
-Paleontology, paleoecology, paleoclimatology and Quaternary geology.
New developments in already established regional projects and new initiatives dealing with the geology of the continent will be summarized and presented on a regular basis. Short notes, discussions, book reviews and conference and workshop reports will also be included when relevant.