: The species of Gastrocopta here described share the angular lamella united with the parietal lamella at the inner end of the former, giving the shape of a “Y”. We describe two new species inhabiting the central and northern part of Argentina, and we report G. iheringi (Suter, 1900), which has the same structural feature, for the first time in the country. Present species of Gastrocopta live in Argentine temperate and tropical areas, but previous records indicate that the most ancient fossil record with such a characteristic anguloparietal lamella is from the Early Miocene of Santa Cruz Province (southern Patagonia).
{"title":"New species of Gastrocopta from Argentina (Mollusca Eupulmonata Gastrocoptidae)","authors":"F. Brito, S. Miquel","doi":"10.22179/revmacn.24.734","DOIUrl":"https://doi.org/10.22179/revmacn.24.734","url":null,"abstract":": The species of Gastrocopta here described share the angular lamella united with the parietal lamella at the inner end of the former, giving the shape of a “Y”. We describe two new species inhabiting the central and northern part of Argentina, and we report G. iheringi (Suter, 1900), which has the same structural feature, for the first time in the country. Present species of Gastrocopta live in Argentine temperate and tropical areas, but previous records indicate that the most ancient fossil record with such a characteristic anguloparietal lamella is from the Early Miocene of Santa Cruz Province (southern Patagonia).","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: Knowledge of the marine bryozoan fauna of Uruguay is mostly based on scattered records found in local faunistic surveys and the taxonomic results of two oceanographic cruises to the Southwest Atlantic, but a comprehensive study has not yet been published for this area. This paper aims to compile an updated checklist, bringing together all the published information about the Uruguayan bryozoan fauna. Of the 73 recorded taxa, 30 (41%) are known only from deep waters off the Río de la Plata. Even considering undetermined species, these re- sults show the high degree of endemism as it was already shown for several other benthic groups such as Bivalvia, Ascidiacea and Pycnogonida. The absence of local taxonomists on bryozoans has resulted in the unprecedented situation that the deep-sea bryozoan fauna of Uruguay is better known than the coastal and shelf representatives of the phylum. The main conclusion of this faunal compilation is that efforts should be made to coordinate the gathering and taxonomic study of shallow and shelf bryozoan collections to bridge the present knowledge gap about the biodiversity of this important group of marine benthic invertebrates.
:乌拉圭海洋苔藓虫动物群的知识主要基于在当地动物调查中发现的零星记录和两次前往西南大西洋的海洋巡航的分类结果，但尚未发表关于该地区的全面研究。本文旨在编制一份更新的清单，汇集所有已发表的关于乌拉圭苔藓虫动物群的信息。在记录的73个分类群中，30个(41%)仅在Río de la Plata附近的深水中已知。即使考虑到未确定的物种，这些结果也显示出高度的地方性，因为它已经在其他几个底栖动物群中得到了证明，如双壳纲、海鞘纲和碧索纲。由于当地没有苔藓虫分类学家，因此出现了一种前所未有的情况，即乌拉圭的深海苔藓虫动物群比该门的沿海和陆架代表动物更为人所知。本研究的主要结论是，应努力协调浅层和陆架苔藓虫的收集和分类研究，以弥补目前对这一重要的海洋底栖无脊椎动物群体生物多样性的认识差距。
{"title":"Checklist of the marine Bryozoa from Uruguay (Southwest Atlantic)","authors":"Lais Vieira Ramalho, J. López-Gappa, F. Scarabino","doi":"10.22179/revmacn.23.722","DOIUrl":"https://doi.org/10.22179/revmacn.23.722","url":null,"abstract":": Knowledge of the marine bryozoan fauna of Uruguay is mostly based on scattered records found in local faunistic surveys and the taxonomic results of two oceanographic cruises to the Southwest Atlantic, but a comprehensive study has not yet been published for this area. This paper aims to compile an updated checklist, bringing together all the published information about the Uruguayan bryozoan fauna. Of the 73 recorded taxa, 30 (41%) are known only from deep waters off the Río de la Plata. Even considering undetermined species, these re- sults show the high degree of endemism as it was already shown for several other benthic groups such as Bivalvia, Ascidiacea and Pycnogonida. The absence of local taxonomists on bryozoans has resulted in the unprecedented situation that the deep-sea bryozoan fauna of Uruguay is better known than the coastal and shelf representatives of the phylum. The main conclusion of this faunal compilation is that efforts should be made to coordinate the gathering and taxonomic study of shallow and shelf bryozoan collections to bridge the present knowledge gap about the biodiversity of this important group of marine benthic invertebrates.","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Typupiscis lujanensis (Ameghino 1874), assignment to Ancistrus cirrhosus (Valenciennes 1836), the Ameghino-Burmeister rivalry and the beginning of the scientific photography in the Plata.","authors":"Toledo Marcelo","doi":"10.22179/revmacn.24.757","DOIUrl":"https://doi.org/10.22179/revmacn.24.757","url":null,"abstract":"","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The female of Melloina gracilis (Schenkel, 1953), a species previously known only from males, is de- scribed. This is the second species of the genus known from both sexes. Detailed morphological description and figures of the female specimen are presented. A reanalysis of Mori & Bertani, 2020 matrix is done and some com- ments about the familial placement of the genus Melloina Brignoli, 1985 are made.
{"title":"Description of the female of Melloina gracilis (Schenkel, 1953) (Mygalomorphae: Theraphosidae) with comments on the familial placement of Melloina","authors":"Victoria Goloboff-Szumik, Duniesky Ríos Tamayo","doi":"10.22179/revmacn.24.781","DOIUrl":"https://doi.org/10.22179/revmacn.24.781","url":null,"abstract":": The female of Melloina gracilis (Schenkel, 1953), a species previously known only from males, is de- scribed. This is the second species of the genus known from both sexes. Detailed morphological description and figures of the female specimen are presented. A reanalysis of Mori & Bertani, 2020 matrix is done and some com- ments about the familial placement of the genus Melloina Brignoli, 1985 are made.","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New postcranial remains of Crocodylomorpha (Archosauria; Pseudosuchia) from the Los Colorados Formation (Late Triassic), La Rioja Province, Argentina.","authors":"Claudio Mamani, J. Leardi, J. Desojo","doi":"10.22179/revmacn.23.743","DOIUrl":"https://doi.org/10.22179/revmacn.23.743","url":null,"abstract":"","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Typupiscis lujanensis (Ameghino 1874), assignment to Ancistrus cirrhosus (Valenciennes 1836), the Ameghino-Burmeister rivalry and the beginning of the scientific photography in the Plata.","authors":"M. Toledo","doi":"10.22179/revmacn.23.757","DOIUrl":"https://doi.org/10.22179/revmacn.23.757","url":null,"abstract":"","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The record of Cretaceous terrestrial lizards (Squamata) in South America is patchy, with seven species described from north-eastern and south-eastern Brazil, and few isolated records of iguanians and scincomorphans from the Argentinian Patagonia. Herein we describe a new genus and species of Cretaceous lizard, Paleochelco occultato gen. et sp. nov., based on a partial skull (MACN-Pv-N 120) discovered about three decades ago that was unnoticed in the Colección Paleovertebrados of the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”. It comes from rocks of the Upper Cretaceous Bajo de la Carpa Formation (Neuquén Group) exposed at the Campus of the Universidad Nacional del Comahue, north of Neuquén City (Neuquén Province). The new taxon was included into a broad phylogenetic dataset of squamates and it was recovered around the base of Polyglyphanodontia in a constrained analysis using a total-evidence backbone. By contrast, the same, but topo- logically unconstrained analysis found Paleochelco occultato also around the base of Polyglyphanodontia but alternatively as the sister taxon to Polyglyphanodontia + Scleroglossa or as one of the sister taxa to the Mosasauria + Scleroglossa clade. The new finding, as well as other records from Argentina and Brazil, highlights a complex, still unrecovered, evolutionary history for lizards in the Mesozoic of South America.
：南美洲白垩纪陆生蜥蜴（Squamata）的记录不完整，巴西东北部和东南部有七种蜥蜴，阿根廷巴塔哥尼亚很少有鬣蜥和闪烁形态蜥蜴的单独记录。在此，我们描述了白垩纪蜥蜴的一个新属和新种，Paleochelco occlultato gen.et sp.nov.，基于大约三十年前在阿根廷自然科学博物馆“Bernardino Rivadavia”的古脊椎动物ColeccióN发现的部分头骨（MACN-Pv-N 120）。它来自于上白垩纪Bajo de la Carpa组（Neuquén群）的岩石，暴露在诺伊昆市（诺伊昆省）北部的国家科马胡大学校园内。这个新的分类单元被纳入了一个广泛的鳞片系统发育数据集，并在使用总证据主干的约束分析中，在多齿牙形亚基部周围找到了它。相比之下，同样但拓扑上不受限制的分析发现，古螯虫也位于多齿牙形亚门的基底附近，但也可以作为多齿牙型亚门+硬骨门的姐妹分类单元，或作为Mosasauria+硬骨纲分支的姐妹分类群之一。这一新发现，以及阿根廷和巴西的其他记录，突显了南美洲中生代蜥蜴复杂的、尚未恢复的进化史。
{"title":"Unexpected new lizard from the Late Cretaceous of southern South America sheds light on Gondwanan squamate diversity","authors":"A. Martinelli, F. Agnolín, M. Ezcurra","doi":"10.22179/revmacn.23.716","DOIUrl":"https://doi.org/10.22179/revmacn.23.716","url":null,"abstract":": The record of Cretaceous terrestrial lizards (Squamata) in South America is patchy, with seven species described from north-eastern and south-eastern Brazil, and few isolated records of iguanians and scincomorphans from the Argentinian Patagonia. Herein we describe a new genus and species of Cretaceous lizard, Paleochelco occultato gen. et sp. nov., based on a partial skull (MACN-Pv-N 120) discovered about three decades ago that was unnoticed in the Colección Paleovertebrados of the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”. It comes from rocks of the Upper Cretaceous Bajo de la Carpa Formation (Neuquén Group) exposed at the Campus of the Universidad Nacional del Comahue, north of Neuquén City (Neuquén Province). The new taxon was included into a broad phylogenetic dataset of squamates and it was recovered around the base of Polyglyphanodontia in a constrained analysis using a total-evidence backbone. By contrast, the same, but topo- logically unconstrained analysis found Paleochelco occultato also around the base of Polyglyphanodontia but alternatively as the sister taxon to Polyglyphanodontia + Scleroglossa or as one of the sister taxa to the Mosasauria + Scleroglossa clade. The new finding, as well as other records from Argentina and Brazil, highlights a complex, still unrecovered, evolutionary history for lizards in the Mesozoic of South America.","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44561282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Xylotafofloristics studies from the Llantenes Formation, Upper Triassic, Mendoza, Argentina.","authors":"Paola Zuliani, A. Crisafulli","doi":"10.22179/revmacn.23.707","DOIUrl":"https://doi.org/10.22179/revmacn.23.707","url":null,"abstract":"","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. L. Olmedo, C. S. González Noschese, J. P. Seco Pon, Damián Romero
{"title":"Trophic spectrum of Tadarida brasiliensis (Chiroptera: Molossidae) in the southeaster Buenos Aires Province, Argentina","authors":"M. L. Olmedo, C. S. González Noschese, J. P. Seco Pon, Damián Romero","doi":"10.22179/revmacn.23.715","DOIUrl":"https://doi.org/10.22179/revmacn.23.715","url":null,"abstract":"","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Ferraro, C. Panti, Soledad Tancoff, L. D. de Cabo, L. Chornogubsky, Sofia d´Hiriart, Cristian J. Grismado, Martín Ramírez, C. Scioscia, Laura Cruz
{"title":"Female scientists of the Museo Argentino de Ciencias Naturales: the first arachnologists","authors":"D. Ferraro, C. Panti, Soledad Tancoff, L. D. de Cabo, L. Chornogubsky, Sofia d´Hiriart, Cristian J. Grismado, Martín Ramírez, C. Scioscia, Laura Cruz","doi":"10.22179/revmacn.23.742","DOIUrl":"https://doi.org/10.22179/revmacn.23.742","url":null,"abstract":"","PeriodicalId":39176,"journal":{"name":"Revista del Museo Argentino de Ciencias Naturales, Nueva Serie","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68257503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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