Domenica N. Garzon, Paul Arellano, Jorge Toro-Álava, J. L. Román-Carrión, Julián E. Ordoñez, Pamela Andrade, Carlos Mendoza-Ochoa, Paula Ayala, Mateo Oleas, Anthony Vizcaino, Nelson Mesías Jiménez-Orellana
{"title":"First record of a mosasaurid (Squamata: Mosasauridae) from the Upper Cretaceous of Ecuador","authors":"Domenica N. Garzon, Paul Arellano, Jorge Toro-Álava, J. L. Román-Carrión, Julián E. Ordoñez, Pamela Andrade, Carlos Mendoza-Ochoa, Paula Ayala, Mateo Oleas, Anthony Vizcaino, Nelson Mesías Jiménez-Orellana","doi":"10.7203/sjp.29179","DOIUrl":null,"url":null,"abstract":": We report the first Upper Cretaceous marine reptile fossil in Ecuador, identified as an incomplete right maxilla from the Mosasauridae family. The remains were unearthed from marine marlstones and limestones within a karstic cave in the Tamia Yura indigenous community, situated northeast of Tena in the central Subandean Zone of the Ecuadorian Amazon. Morphological analysis reveals seven preserved teeth conical in shape. Stratigraphic analysis suggests the remains belong to the Middle Napo Fm., Oriente basin, indicating a presence from the Turonian to the end of the Coniacian. This discovery offers new insights into the study of Cretaceous marine reptiles in South America.","PeriodicalId":21954,"journal":{"name":"Spanish Journal of Palaeontology","volume":"43 4","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Spanish Journal of Palaeontology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7203/sjp.29179","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
: We report the first Upper Cretaceous marine reptile fossil in Ecuador, identified as an incomplete right maxilla from the Mosasauridae family. The remains were unearthed from marine marlstones and limestones within a karstic cave in the Tamia Yura indigenous community, situated northeast of Tena in the central Subandean Zone of the Ecuadorian Amazon. Morphological analysis reveals seven preserved teeth conical in shape. Stratigraphic analysis suggests the remains belong to the Middle Napo Fm., Oriente basin, indicating a presence from the Turonian to the end of the Coniacian. This discovery offers new insights into the study of Cretaceous marine reptiles in South America.
:我们报告了厄瓜多尔的第一具上白垩世海洋爬行动物化石，经鉴定为沧龙科（Mosasauridae）不完整的右上颌骨。这具化石是从位于厄瓜多尔亚马逊中部苏班德安地区特纳东北部的塔米亚尤拉土著社区一个喀斯特洞穴中的海洋泥灰岩和石灰岩中发掘出来的。形态分析显示，保存下来的七颗牙齿呈圆锥形。地层分析表明，这些遗骸属于 Oriente 盆地的纳波地层中段，表明从图伦纪到科尼亚纪末期一直存在。这一发现为研究南美洲白垩纪海洋爬行动物提供了新的视角。
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
