An enigmatic ‘conchostracan’ fauna in the eastern Dead Sea region of Jordan: First records of Rossolimnadiopsis Novozhilov from the Early Triassic Ma'in Formation
| Autor: | Joerg W. Schneider, V. K. Golubev, A. G. Sennikov, Sebastian Voigt, Dieter Uhl, Frank Scholze, Abdalla Abu Hamad |
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| Rok vydání: | 2017 |
| Předmět: |
Dorsum
010506 paleontology Dead sea Permian Fauna Early Triassic Paleontology Ecological succession 010502 geochemistry & geophysics Oceanography 01 natural sciences Sedimentary rock Syncline Ecology Evolution Behavior and Systematics Geology 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Palaeogeography, Palaeoclimatology, Palaeoecology. 466:314-325 |
| ISSN: | 0031-0182 |
| DOI: | 10.1016/j.palaeo.2016.11.047 |
| Popis: | The Late Permian–Early Triassic sedimentary succession in the eastern Dead Sea Region of Jordan was surveyed for conchostracans (Crustacea: Branchiopoda). Whereas their occurrence in the Middle–Late Permian Umm Irna Formation could not be confirmed, the overlying Ma'in Formation contained a fauna comprising Rossolimnadiopsis Novozhilov and other, thus far, taxonomically undetermined conchostracans. Here, a new species, Rossolimnadiopsis hanskerpi nov. sp., is described and figured. It shows a very distinctive concavely curved dorsal margin and an elevated, outwardly curved semi-circular flange. Rossolimnadiopsis hanskerpi nov. sp. occurs in dark gray, laminated, lacustrine, siltstones of the Ma'in Formation (Nimra Member), which is considered to be of Early Triassic age. Based on literature data, Rossolimnadiopsis was previously recorded only from two localities in the Moscow syncline in Central Russia. In addition to Jordan, the genus has been identified in India and possibly in Germany. All these occurrences seem to be restricted to a narrow stratigraphic interval ranging from the Late Permian to the Early Triassic. |
| Databáze: | OpenAIRE |
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