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Redescription of Szelepis Liu, 1981 (Placodermi, Arthrodira), from the Lower Devonian of China
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology. Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Xizhimenwai Dajie 142, Beijing 100044, Peoples R China.;Australian Natl Univ, Res Sch Phys & Engn, Dept Appl Math, Mills Rd, Acton, ACT 2601, Australia..ORCID iD: 0000-0002-6859-1041
Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Xizhimenwai Dajie 142, Beijing 100044, Peoples R China..
Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Xizhimenwai Dajie 142, Beijing 100044, Peoples R China..
2017 (English)In: Journal of Vertebrate Paleontology, ISSN 0272-4634, E-ISSN 1937-2809, Vol. 37, no 2, e1312422Article in journal (Refereed) Published
Abstract [en]

The skull roof of the species Szelepis yunnanensis (Liu, 1979) from the Early Devonian of Yunnan is redescribed, as well as other Szelepis material previously published. It appears that only the holotype of S. yunnanensis can be confidently assigned to this genus. The fusion of the preorbital plates into one plate strongly suggests the assignment of Szelepis yunnanensis to the monophyletic family Actinolepididae Gross, 1940, sensu stricto (comprising Actinolepis Agassiz, 1884, and Bollandaspis Schmidt, 1979). This is confirmed by a phylogenetic analysis. Hence, Szelepis constitutes the most ancient occurrence of the family but not the sister group to the remaining members.

Place, publisher, year, edition, pages
2017. Vol. 37, no 2, e1312422
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Evolutionary Biology
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URN: urn:nbn:se:uu:diva-331953DOI: 10.1080/02724634.2017.1312422ISI: 000406430700014OAI: oai:DiVA.org:uu-331953DiVA: diva2:1151371
Available from: 2017-10-23 Created: 2017-10-23 Last updated: 2017-10-23Bibliographically approved

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