First record of the family Palaeolimnadiopseidae Defretin-Le Franc, 1965 (Crustacea–Conchostraca) in the Triassic of Argentina |
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| Institution: | 1. Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, USA;2. Department of Anthropology and Development Studies at the University of Johannesburg, South Africa;3. TRACES Laboratory, Toulouse University II-Jean Jaurès, Toulouse, France;1. Instituto de Geociências, Universidade de São Paulo, Rua do Lago, 652 - Butantã, São Paulo, SP, CEP: 05508-080, Brazil;2. Departamento de Biologia, Universidade Federal de São Carlos, Campus Sorocaba, Rodovia João Leme dos Santos, s/n - Parque Reserva Fazenda Imperial, Sorocaba, SP, CEP: 18052780, Brazil;3. Instituto de Geociências, Universidade Federal do Pará, Rua Augusto Corrêa, 01 - Campus Universitário do Guamá, Belém, PA, CEP: 66075-110, Brazil;1. CPRM – Serviço Geológico do Brasil, Rua Costa, 55, São Paulo-SP, 01304-010, Brazil;2. Instituto de Geociências, Universidade de São Paulo, Rua do Lago, 562, São Paulo-SP, 05508-080, Brazil;3. Prairie Research Institute, Illinois State Geological Survey, 615 East Peabody Drive, Champaign, IL, 61820, USA;4. Instituto Geológico – Governo do Estado de São Paulo – Secretaria do Meio Ambiente, Avenida Miguel Stéfano, 3900, São Paulo-SP, 04301-903, Brazil;1. Department of Physical Therapy and Rehabilitation Science, University of Kansas Medical Center, Kansas City, KS 66160, USA;2. Department of Neurosurgery, University of Kansas Medical Center, Kansas City, KS 66160, USA;3. Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA;1. Department of Geological Sciences, University of Missouri, Columbia, MO 65211, USA;2. Department of Geology, Utah State University, Logan, UT 84322, USA |
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| Abstract: | Endolimnadiopsis rusconii sp. nov. is the first record of paleolimnadiopseid conchostracan from the lower Upper Triassic Cacheuta Formation, Mendoza Province, Argentina. An extended diagnosis of the genus Endolimnadiopsis Shen is presented, and some comments about its taxonomic position in Family Palaeolimnadiopseidae and Subfamily Asiolimnadiopseinae are also given. The paleobiological, paleobiogeographical, and evolutionary implications of this finding are briefly discussed. The find supports a close relationship between southamerican and asiatic conchostracan faunas. From an evolutionary point of view, the new species shows a combination of both characters, primitive and more advanced, that corresponds with a transitional form between primitive paleozoic to advanced mesozoic species. E. rusconii sp. nov. is compared with other paleolimnadiopseids such as Endolimnadiopsis eichwaldi Netshajev from the Upper Permian of Russia. |
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