Fellerites sp. 1

Guillam, Elvis, Forel, Marie-Béatrice, Song, Junjun & Crasquin, Sylvie, 2022, Late Devonian-early Carboniferous ostracods (Crustacea) from South China: taxonomy, diversity and implications, European Journal of Taxonomy 804, pp. 1-62 : 8

Fellerites sp. 1

Fig. 5B

Material examined

CHINA • 1 complete carapace ( Fig. 5B ); Blue Snake section , Gelaohe Formation , sample 19BAI 67; P6M 3838 . • 7 complete carapaces; Blue Snake section, Gelaohe Formation , samples 19BAI 67, 19BAI 68, 19BAI 74, 19BAI 80. All from the Famennian, late Devonian.

Dimensions

RV: L = 595–625 µm, H = 388–423 µm, H/L = 0.65–0.68.

LV: L = 455–753 µm, H = 286–479 µm, H/L = 0.63–0.68.

Remarks

This taxon is rare in the studied material and is represented by poorly preserved specimens that do not allow for a specific attribution. It is morphologically close to Phlyctiscapha ? xiangzhouensis Wang, 1983 from the Lower Devonian of the Sipai Formation, Guangxi, South China ( Wang 1983a). The specimen illustrated in Wang (1983a) lacks the small velate ridge parallel to the marginal ridge characteristic of the genus Phlyctiscapha . Its outline, the absence of velar structure or teeth along free margin and the carapace slightly compressed along free margin could rather pointed to the genus Fellerites Gründel, 1962 . Fellerites sp. 1 differs from Phlyctiscapha ? xiangzhouensis by its higher carapace, slightly stockier morphology and its smaller size (L = 1060–1360 µm, H = 660–920 µm, H/L = 0.62–0.76 for Phlyctiscapha ? xiangzhouensis).

Occurrence

Samples 19BAI 67, 19BAI 68, 19BAI 74, 19BAI 80, Gelaohe Formation, Blue Snake section, Famennian, late Devonian (this work).

Figures

Fig. 5. SEM pictures of ostracods from Blue Snake section, Dushan County, South China, late Famennian–Tournaisian, late Devonian–early Carboniferous. All specimens are temporarily housed in the collections of Sorbonne Université, Paris, France (numbers P6M****).A. Aparchites sp., left lateral view of a carapace, sample 19BAI 08 (P6M 3837). B. Fellerites sp. 1, right lateral view of a carapace, sample 19BAI 67 (P6M 3838). C. Fellerites sp. 2, right lateral view of a carapace, sample 19BAI 80 (P6M 3839). D. Parabolbinella sp., right lateral view of an anteriorly broken carapace, sample 19BAI 74 (P6M 3840). E. Amphissites sp., right lateral view of a steinkern, sample 19BAI 74 (P6M 3841). F–L. Clavofabella? lanshella Guillam & Forel sp. nov. F. Holotype, left lateral view of a carapace, sample 19BAI 68 (P6M 3842). G. Same specimen, dorsal view. H. Paratype, left lateral view of a carapace, sample 19BAI 68 (P6M 3843). I. A-1, left lateral view of a carapace, sample 19BAI 68 (P6M 3844). J. Same specimen, dorsal view. K. A-2, left lateral view of a carapace, sample 19BAI 68 (P6M 3845). L. A-3, left lateral view of a carapace, sample 19BAI 68 (P6M 3846). M–R. Clavofabella? sp. M. Adult, left lateral view of a carapace, sample 19BAI 68 (P6M 3847). N. A-1, left lateral view of a carapace, sample 19BAI 69 (P6M 3848). O. A-2, left lateral view of a carapace, sample 19BAI 68 (P6M 3849). P. A-3, left lateral view of a carapace, sample 19BAI 68 (P6M 3850). Q. A-4, left lateral view of a carapace, sample 19BAI 68 (P6M 3851). R. A-5, left lateral view of a carapace, sample 19BAI 68 (P6M 3852). S. Coryellina grammi Olempska, 1999, left lateral view of a carapace, sample 19BAI 41 (P6M 3853). T. Selebratina sp., left lateral view of a carapace, sample 19BAI 41 (P6M 3854). U. Beyrichiopsis sp., left lateral view of a carapace, sample 19BAI 41 (P6M 3855). Scale bars = 100 µm.