{"title":"巴塔哥尼亚（阿根廷丘布特省）达尼亚纲的一个新Veneroid属（软体动物：双壳纲）","authors":"M. Alvarez, Claudia J. del Río","doi":"10.5710/AMGH.04.01.2021.3377","DOIUrl":null,"url":null,"abstract":"Abstract. The endemic Patagonian genus Titomaya gen. nov. is erected to include the Danian Meretrix chalcedonica (Lefipan and Salamanca formations) and Titomaya longobucca sp. nov. (Salamanca Formation) from the Chubut Province (Argentina). Although Meretrix and Titomaya share the same characteristic sculpture of their nymphs, Titomaya is differentiated by having medium to small, subtriangular, higher than long shells, a narrower and shorter hinge plate, smaller cardinal and anterior teeth, and by the development of a deeper pallial sinus. This new genus rules out the presence of Meretrix in Patagonia, as was long believed, and increases the list of endemic taxa that characterize the Danian assemblages of Patagonia.","PeriodicalId":50819,"journal":{"name":"Ameghiniana","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A New Veneroid Genus (Mollusca: Bivalvia) of the Danian of Patagonia (Chubut Province, Argentina)\",\"authors\":\"M. Alvarez, Claudia J. del Río\",\"doi\":\"10.5710/AMGH.04.01.2021.3377\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract. The endemic Patagonian genus Titomaya gen. nov. is erected to include the Danian Meretrix chalcedonica (Lefipan and Salamanca formations) and Titomaya longobucca sp. nov. (Salamanca Formation) from the Chubut Province (Argentina). Although Meretrix and Titomaya share the same characteristic sculpture of their nymphs, Titomaya is differentiated by having medium to small, subtriangular, higher than long shells, a narrower and shorter hinge plate, smaller cardinal and anterior teeth, and by the development of a deeper pallial sinus. This new genus rules out the presence of Meretrix in Patagonia, as was long believed, and increases the list of endemic taxa that characterize the Danian assemblages of Patagonia.\",\"PeriodicalId\":50819,\"journal\":{\"name\":\"Ameghiniana\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2021-04-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ameghiniana\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.5710/AMGH.04.01.2021.3377\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PALEONTOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ameghiniana","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.5710/AMGH.04.01.2021.3377","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PALEONTOLOGY","Score":null,"Total":0}
A New Veneroid Genus (Mollusca: Bivalvia) of the Danian of Patagonia (Chubut Province, Argentina)
Abstract. The endemic Patagonian genus Titomaya gen. nov. is erected to include the Danian Meretrix chalcedonica (Lefipan and Salamanca formations) and Titomaya longobucca sp. nov. (Salamanca Formation) from the Chubut Province (Argentina). Although Meretrix and Titomaya share the same characteristic sculpture of their nymphs, Titomaya is differentiated by having medium to small, subtriangular, higher than long shells, a narrower and shorter hinge plate, smaller cardinal and anterior teeth, and by the development of a deeper pallial sinus. This new genus rules out the presence of Meretrix in Patagonia, as was long believed, and increases the list of endemic taxa that characterize the Danian assemblages of Patagonia.
期刊介绍：
Ameghiniana is a bimonthly journal that publishes original contributions on all disciplines related to paleontology, with a special focus on the paleontology of Gondwana and the biotic history of the southern hemisphere. Published yearly since 1957, it has undoubtedly become the main palaeontological publication from Latin America. Ameghiniana has recently broadened its editorial board, reorganized its production process, and increased to a bimonthly frequency, which resulted in a significant decrease in the turn around time.
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