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«To cite this version: Aihua Yuan. Latest Permian Deep-Water Ostracod (Crustacea) Fauna from South China. Pa- leontology. Universit´ Pierre et Marie ...»

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Explanation of Plate 4. figs 1–3. Spinomicrocheilinella anterocompressa n. sp.: 1, 03DP2-19, right view of right valve, paratype, collection number X0301-105; 2, 03DP2-19, right view of right valve, paratype, collection number X0301-106; 3, 03DP2-23, right view of carapace, holotype, collection number X0301-104. figs 4–7. Spinomicrocheilinella aff. dargenioi Kozur, 1991: 4, 03DP3-7, right view of carapace, collection number X0301-153; 5, 03 DP3-7, right view of right valve, collection number X0301-154; 6, 03DP2-19, right view of right valve, collection number X0301-155; 7, 03DP2-23, inner view of right valve, collection number X0301-156. figs 8–9. Spinomicrocheilinella sp. 1: 8, 03DP3-7, right view of right valve, collection number X0301-157; 9, 03DP4, right view of right valve, collection number X0301-159. fig. 10. Spinomicrocheilinella sp. 2: 03DP5-12, right view of carapace, collection number X0301-160. figs 11–12. Pseudobythocypris aff. procera (Coryell & Billings, 1932): 11, 03DP3-1, left view of left valve, collection number X0301-160; 12, 03DP3-1, right view of right valve, collection number X0301-161. figs 13–15. Pseudobythocypris cf. centralis (Coryell & Billings, 1932): 13, 03DP2, right view of carapace, collection number X0301-162; 14, 15, 03DP2-23, left and inner views of left valves, collection number respectively X0301-163 and X03101-164. fig. 16. Microcheilinella aculeata Buschmina, 1975: 03DP10-1, right view of carapace, collection number X0301-165. figs 17–18. Pseudobythocypris sp. 1: 17, 03DP2-4, left view of left valve, collection number X0301-166; 18, 03DP5, left view of left valve, collection number X0301-167. Scale bar is 100 µm.

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Plate 5.

Explanation of Plate 5. fig. 1. Healdia sp. 1: 03DP4, right view of right valve, collection number X0301-168. fig. 2. Healdiopsis thuringensis

thuringensis (Gründel, 1961): 03DP4, inner view of left valve, collection number X0301-169. fig. 3. Cavellina cf. nebrascensis (Geintze, 1867):

03DP10-1, left view of carapace, collection number X0301-170. figs 4–7. Absina cf. unispinosa (Gründel, 1961) sensu Becker, 1999: 4, 5, 03DP4, right views of right valves, collection numbers respectively X0301-171 and X0301-172; 6, 03DP4, right view of right valve, collection number X0301-173;

7, 03DP4, inner view of right valve, collection number X0301-174. fig. 8. Absina ? sp. 1: 03DP4, right view of right valve, collection number X0301-175. fig. 9. Absina ? sp. 2: 03DP4, right view of right valve, collection number X0301-176. figs 10–11. Waldeckella ? sphaerula (Gründel, 1961) sensu Becker, 1999: 10, 03DP5-19, right view of right valve; 11, 03DP3-14, collection number X0301-177. 11, sample 03DP3-14, right view of right valve, collection number X0301-178. fig. 12. Polycope sp. 1: 03DP2-20, right view of right valve, collection number X0301-179. fig. 13. Polycope aff.

baudi Crasquin-Soleau, 1996: 03DP3-14, left view of left valve, collection number X0301-180. fig. 14. Discoidella xingyangensis Zhang, 1987:

03DP2-12, left view of left valve, collection number X0301-181. Scale bar is 100 µm.

Remarks. The genus Absina was established by Gründel in 1962 that the anterior beak was bent downward and considered as the with the type species and Cypridina ? unispinosa Gründel, 1961. myodocopid rostriform; consequently, the genus was assigned to In two papers (Gründel, 1961, 1962), DB and VB are reversed so the order Myodocopida. In 1979, Blumenstengel reversed the 184 Latest Permian ostracods, S. China

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186 Latest Permian ostracods, S. China Fig. 3. Ostracod composition in each bed of the Dongpan Section. In abscissa: percentage of species; in ordinate: sample numbers.

Fig. 4. Triangular diagram of ostracod composition, bed by bed (based on Lethiers & Raymond, 1991).

Sylvester-Bradley, 1971; Benson, 1972, 1975). This fauna is species level (Fig. 3) and represented on a triangular diagram restricted to deep-water environments, from 500 m to 5000 m (Fig. 4). Bed 2 and Bed 4, with percentages of palaeopsydeep, in connection with a global ocean supplied with cold water chrospheric species of 55% and 87.5%, respectively, are probably by ice caps. Becker (2000) suggested that the palaeopsy- bathyal. Bed 3, with 37% palaeopsychrospheric species and 26% chrospheric ecotype is more indicative of low-energy conditions Bairdiidae, could indicate an external platform limited to the than of water depth. The authors agree with the opinion of upper part of the continental slope. Beds 5, 7 and 10-1, low-energy conditions; however, the bathymetric evaluations containing lower than 50% palaeopsychrospheric species and based on palaeopsychrospheric ostracods have been supported 15% Bairdiidae, may indicate a much shallower environment by the associated facies and fauna (see radiolarian results than Bed 3. Consequently, a possible bathymetric variation is below). shallowing from Bed 2 to Bed 3, deepening from Bed 3 to Bed 4 The neritic forms present in the Dongpan Section are typical and then shallowing.

of tropical warm water and could be split into two palaeoeco- Environmental changes are also indicated by accompanying logical ‘groups’: the Bairdiidae, which are open-marine platform radiolarians, foraminifera and brachiopods. According to Meng inhabitants, and ‘other neritic’ species, which belong to a (pers. comm. unpublished PhD thesis), radiolarians represented by a few Albaillellaria species and rich Latentifistularia were shallower environment. Following the Lethiers & Raymond recorded from Bed 2 to Bed 5. Albaillellaria begin to appear in the (1991) model, a percentage of palaeopsychrospheric ostracods higher than 50% is indicative of a slope to bathyal environment. open-marine environment with a water depth range of 200–500m This model was applied to evaluate the bathymetry. Ostracod and are used to indicate bathyal and abyssal conditions (Kozur, 1993). Latentifistularia usually live in the external platform to composition was calculated from Bed 2 to Bed 10-1 by bed at

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Table 2. Age and occurrence of common species described in previous studies.

Fig. 5. Wordian palaeogeographical map – Pangaea B reconstruction (modified after Crasquin-Soleau et al., 2001). PF: platform.

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190 Latest Permian ostracods, S. China Roth, R. 1928. Monoceratina: a new genera of Ostracoda from the Wang, S.Q. 1988. Ostracode faunas from the Early Carboniferous Pennsylvanian of Oklahoma. Journal of Paleontology, 2 (1): 15–19. Wangyou Formation in Nandan of Guangxi and their paleoecotype.

Memoires of Nanjing Institute of Geology and Palaeontology, Rozhdestvenskaya, A.A. 1959. Ostracodes of the Devonian terrigenous beds of western Bashkiria and their stratigraphic significance. In: Academia Sinica, 24: 269–315 [in Chinese].

Chibrikova, E.V. & Rozhdestvenskaya, A.A. (Eds), Contributions to Yang, R.Q. 2001. Late Permian non marine Ostracod Assemblages and the paleontology and stratigraphy of the Devonian and older deposits of their Biostratigraphical Significance from the east piedmont of Bashkiria. Ufa, USSR, 117–247 [in Russian]. Taihang Mountain, Hebei Province. Selected Papers from the 21st Annual Conventions of Palaeontological Society of China. PalaeontoRuedemann, R. 1901. Trenton conglomerate of Rysedorph Hill Rensselaer Co., N.Y., and its fauna. New York, State Museum, logical Society of China, Nanjing [in Chinese], 39–40.

Bulletin, Albany, 49: 85. Yang, Z.Y., Yin, H.F., Wu, S.B., Yang, F.Q., Ding, M.H. & Xu, G.R.

Scott, H.W. & Borger, H.D. 1941. Pennsylvanian ostracodes from 1987. Permian–Triassic Boundary Stratigraphy and Fauna of South Lawrence County, Illinois. Journal of Paleontology, 15 (4): 356. China. Geological Publishing House, Beijing, 379pp. [in Chinese with Shi, C.G. & Chen, D.Q. 1987. The Changhsingian ostracodes from English abstract].

Meishan, Changxing, Zhejiang. Stratigraphy and Palaeontology Yao, J., Yao, A. & Kuwahara, K. 2001. Upper Permian biostratigraphic of Systematic Boundaries in China, Permian–Triassic Boundary, 1. correlation between conodont and radiolarian zones in the TambaNanjing University Press, Nanjing, 23–80 [in Chinese]. MinoTerrane, Southwest Japan. Journal of Geosciences, Osaka City Shi, C.G. & Chen, D.Q. 2002. Late Permian Ostracods from Heshan University, 44: 97–119.

and Yishan of Guangxi. Bulletin of Nanjing Institute of Geology and Yi, W.J. 1992. Ostracoda fauna of Late Late Permian and Early Early Palaeonntology, Academia Sinica (Jiangsu Science and Technology Triassic in Dongkeng Area of Datian County, Fujian Province.

Publishing House, Nanjing), 15: 47–129. Geology of Fujian, 11(2): 103–114 [in Chinese].

Sohn, I.G. 1950. Growth series of Ostracodes from the Permian Yi, W.J. 1993. Two new genera of fossil ostracoda from Permian in

of Texas. United States Geological Survey Professional Paper, 221: Fujian. Journal of Fuzhou University (Natural Science Edition), 21(2):

33–43. 99–105 [in Chinese].

Ulrich, E.O. 1891. New and little known American Paleozoic Ostracoda. Yi, W.J. 2004. Ostracodes from the Upper Permian and Lower Triassic Part 3. Carboniferous species. The Journal of Cincinnati Society of at the Kongtong Shan Section of Datian, Fujian. Acta PalaeontoNatural History, 13: 200–211. logica Sinica, 43(4): 556–570 [in Chinese].

Ulrich, E.O. 1894. The Lower Silurian Ostracoda of Minnesota. Geo- Zhang, X.J. & Liang, X.Y. 1987. Ostracoda from the Taiyuan logical Natural History Survey, 3 (2): 684. Formation of Xingyang and Gongxian Districts, Henan. Acta Wang, S.Q. 1978. Late Permian and Early Triassic ostracods of Western Micropalaeontologica Sinica, 4(3): 293–312 [in Chinese].

Guizhou and Northeastern Yunnan. Acta Palaeontologica Sinica, 17(3): 277–308 [in Chinese].

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Fig.1 Tribolbina cf. doescheri Sohn, 1978. External view of right valve. Collection number X0301-189.

Fig.2 Kirkbya cf. sp. A sensu Becker & Wang, 1992. External view of right valve. Collection number X0301-107.

Fig.3 Kirkbya aff. wymani Kellett, 1933. External view of right valve. Collection number X0301-190.

Figs 4-6 Kirkbya sp. 1 sensu Yuan et al., 2007. 4, 5. external view of left valves; 6. external view of right valve.

Collection numbers X0301-110, X0301-111and X0301-112.

Fig.7 Kirkbya sp.2. External view of left valve. Collection number X0301-191.

Fig.8 Kirkbya sp.3. External view of right valve. Collection number X0301-192.

Fig.9 Aurikirkbya cf. ultima (Kozur, 1985a). External view of right valve. Collection number X0301-193.

Fig.10 Aurikirkbya sp.1 sensu Yuan et al., 2007. External view of incomplete valve. Collection number X0301-108.

Fig.11 Aurikirkbya sp.2. External view of left valve. Collection number X0301-194.

Fig.12 Nodokirkbya ? cf. striatoreticulata Kozur, 1991a sensu Yuan et al., 2007. External view of right valve.

Collection number X0301-109.

Fig.13 Tubulikirkbya sp.1. External view of left valve. Collection number X0301-195.

Fig.14 Amphissitidae sp.1. External view of right valve. Collection number X0301-196.

Fig.15 Amphissitidae sp.2. External view of right valve. Collection number X0301-197.

Fig.16 Kellettina aff. reticulata Kozur, 1991a sensu Yuan et al., 2007. External view of left valve. Collection number X0301-113.

Figs 17, 18 Kellettinidae indet.1. 17. external view of left valve. Collection number X0301-198; 18. external view of right valve.. Collection number X0301-199.

PhD dissertation of University of Pierre Marie Curie & China University of Geosciences (Wuhan) 203 2008/5 204 Yuan Aihua: Latest Permian Deep-Water Ostracod (Crustacea) Fauna from South China 2008/5

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Scale bar is 100µm.

Fig.1 Roundyella ? suboblanga Wang, 1978. External view of right valve. Collection number X0301-200.

Fig.2 Roundyella aff. labaensis wangi Kozur, 1985a. External view of right valve. Collection number X0301-201.

Fig.3 Permokegelites cf. beichuanensis Becker & Wang, 1992. External view of right valve. Collection number X0301-202.

Figs 4-6 Cyathus caperata (Guan, 1978). 4. external view of right valve. Collection number X0301-234; 5. right lateral view of carapace. Collection number P6M2347; 6. left lateral view of carapace. Collection number P6M2348.

Fig.7 Macronotella ? sp.1 sensu Yuan et al., 2007. Left lateral view of carapace. Collection number X0301-114.

Fig.8 Macronotella ? sp.2 sensu Yuan et al., 2007. External view of left valve. Collection number X0301-115.

Fig.9 Paraparchites sp. 1 sensu Yuan et al., 2007. External view of right valve. Collection number X0301-121.

Figs 10-12 ? Libumella athabascensis Green, 1963 sensu Yuan et al., 2007. 10. external view of left valve. Collection number X0301-116; 11. external view of left valve. Collection number X0301-117; 12. external view of right valve.

Collection number X0301-118.

Figs 13, 14 Libumella cf. kargalensis Rozhdestvenskaya, 1959 sensu Yuan et al., 2007. 13. external view of left valve.

Collection number X0301-119; 14. external view of right valve. Collection number X0301-120.

Fig.15 Palaeocopida indet. External view of right valve. Collection number X0301-235.

Figs 16-18 Permoyoungiella ? sp. 1 sensu Yuan et al., 2007. 16. external view of right valve. Collection number X0301-122; 17. inner view of right valve. Collection number X0301-123; 18. inner view of left valve. Collection number X0301-124.

PhD dissertation of University of Pierre Marie Curie & China University of Geosciences (Wuhan) 205 2008/5 206 Yuan Aihua: Latest Permian Deep-Water Ostracod (Crustacea) Fauna from South China 2008/5

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Fig.1 Bairdia altiarcus Chen, 1958. External view of right valve. Collection number X0301-236.

Fig.2 Bairdia cf.altiarcus Chen, 1958. Right lateral view of carapace. Collection number X0301-203.

Fig.3 ? Bairdia anbeedei Belousova, 1965. External view of left valve. Collection number X0301-204.

Figs 4-9 Bairdia dongpanensis Yuan & Crasquin-Soleau, 2007. 4. right lateral view of carapace, holotype, collection number X0301-101; 5. inner view of left valve, paratype, collection number X0301-103; 6. external view of left valve.



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