Microcheilinella postspinosa Chen, 1958

Tarnac, Anaëlle, Forel, Marie-Béatrice, Nestell, Galina, Nestell, Merlynd & Crasquin, Sylvie, 2021, Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA, European Journal of Taxonomy 770, pp. 1-60 : 42-44

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scientific name	Microcheilinella postspinosa Chen, 1958
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Fig. 11L

Microcheilinella postspinosa Chen, 1958: 254 , pl. 2 figs 1–6.

Microcheilinella postspinosa – Chen & Bao 1986: 110.

non Microcheilinella postspinosa – Crasquin-Soleau & Baud 1998: 146, pl. 7 figs 5–9.

Material examined

USA • 1 complete carapace; Guadalupe Mountains , West Texas , ‘ McKittrick Canyon’ Member , Bell Canyon Formation , MKCS1 section, sample 2 (GM6); Capitanian, Middle Permian; MNHN.F. F63465 View Materials • 1 left valve; same locality as for preceding but sample 4 (GM5); Capitanian , Middle Permian; MNHN.F. F63472 View Materials .

Occurrence

Chishia Limestone, Kwanshan, Lungtan, China, Kungurian, Early Permian ( Chen 1958); Jurong, China, Kungurian, Early Permian ( Chen & Bao 1986); samples 4 (GM5) and 2 (GM6), MKCS 1 section,

Fig. 11 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1, GM2 and GM4; Capitanian, MKCS 1 section, samples 4 (GM5) and 2 (GM6)) of the Guadalupe Mountains (West Texas, USA), except R and S from the late Capitanian, Middle Permian, Penglaitan section, Guangxi, South China ( Zazzali 2016, unpublished PhD thesis). All specimens from A–Q are temporarily housed in the collections of the Muséum national d’histoire naturelle, Paris, France ( MNHN), specimens R and S are housed in the collections of the Sorbonne University, Paris, France. A–B. Ceratobairdia cf. ventrocostata Wang, 1978. A. External view of a left valve, sample 4 (GM5) ( MNHN.F. F63454 View Materials ). B. External view of a left valve, sample 2 (GM6) ( MNHN.F. F63455 View Materials ). – C–G. Ceratobairdia pratti Forel sp. nov. C. Holotype, right lateral view of a carapace, sample GM1 ( MNHN.F. F63456 View Materials ). D. Paratype, external view of a left valve, sample GM1 ( MNHN.F. F63457 View Materials ). E. External view of a left valve, sample GM1 ( MNHN.F. F63458 View Materials ). F. External view of a left valve, sample GM1 ( MNHN.F. F63459 View Materials ). G. External view of a left valve, sample GM1 ( MNHN.F. F63460 View Materials ). – H–I. Petasobairdia campbelli Chitnarin in Chitnarin et al., 2017. H. External view of a left valve, sample GM2 ( MNHN.F. F63461 View Materials ). I. External view of a left valve, sample GM4 ( MNHN.F. F63462 View Materials ). – J. Petasobairdia cf. bicornuta Chen in Chen & Shi, 1982, right lateral view of a carapace, sample 4 (GM5) ( MNHN.F. F63463 View Materials ). – K. Petasobairdia? sp., external view of a right valve, sample 4 (GM5) ( MNHN.F. F63464 View Materials ). – L. Microcheilinella postspinosa Chen, 1958 , right lateral view of a carapace, sample 2 (GM6) ( MNHN.F. F63465 View Materials ). – M. Microcheilinella sp. 15 in Zazzali et al. (2015), right lateral view of a carapace, sample 4 (GM5) ( MNHN.F. F63466 View Materials ). – N–O. Microcheilinella sp. N. Right lateral view of a carapace, sample 2 (GM6) ( MNHN.F. F63467 View Materials ). O. Right lateral view of a carapace, sample 4 (GM5) ( MNHN.F. F63468 View Materials ). – P–Q. Denticupachydomella bellcanyonensis Forel sp. nov. P. Holotype, right lateral view of a carapace, sample 4 (GM5) ( MNHN.F. F63469 View Materials ). Q. Paratype, external left of a right valve, sample 2 (GM6) ( MNHN.F. F63470 View Materials ). – R –S. Microcheilinella sp. D in Zazzali (2016). R. Dorsal view of a carapace (P6M 3778). S. Right lateral view of a carapace (P6M 3779). Scale bars: 100 µm.

‘McKittrick Canyon’ Member, Bell Canyon Formation, Guadalupe Mountains, West Texas, USA, Capitanian, Middle Permian (this work).

References

Chen T. C. 1958. Permian ostracods from the Chihsia Limestone of Lungtan, Nanking. Acta Palaeontologica Sinica 6: 235 - 257.

Chen D. Q. & Bao H. 1986. Lower Permian Ostracodes from the Chihsia Formation of Jurongand Longtar, Jiangsu Province. Acta Micropalaeontologica Sinica 3: 107 - 132.

Chitnarin A., Crasquin S., Forel M. - B. & Tepnarong P. 2017. Ostracods (Crustacea) of the Early - Middle Permian (Cisarulian - Guadalupian) from Central Thailand (Indochina Block): Part II, Orders Podocopida, Platycopida and Myodocopida. Geodiversitas 39 (4): 651 - 690. https: // doi. org / 10.5252 / g 2017 n 4 a 1

Crasquin-Soleau S. & Baud A. 1998. New Permian ostracods from Greece (Hydra Island). Journal of Micropalaeontology 17: 131 - 152. https: // doi. org / 10.1144 / jm. 17.2.131

Shi C. G. 1982. Some Early Carboniferous ostracodes from Nylam, Xizang (Tibet). Acta Palaeontologica Sinica 21: 309 - 314.

Wang S. Q. 1978. Late Permian and Early Triassic ostracods of Western Guizhou and Northeastern Yunnan. Acta Palaeontologica Sinica 17: 277 - 308.

Zazzali S., Crasquin S., Deconinck J. F. & Feng Q. L. 2015. Biodiversity across the Guadalupian - Lopingian Boundary: first results on the ostracod (Crustacea) fauna, Chaotian section (Sichuan Province, South China). Geodiversitas 37 (3): 283 - 313. https: // doi. org / 10.5252 / g 2015 n 3 a 1

Zazzali S. 2016. Paleobiodiversite des ostracodes a la limite Permien moyen - Permien superieur. PhD Thesis, Universite Paris 6, Golden.