Aphelocythere sp. 1

Wannenmacher, Norbert, Dietze, Volker, Franz, Matthias & Schweigert, Guenter, 2021, New records of ostracods and ammonites from the Aalenian (mainly Concavum Zone) of the Zollernalb (Swabian Alb, SW Germany), Zitteliana 95, pp. 1-55 : 11

? Aphelocythere sp. 1

Fig. 7 : 7, Fig. 11: 9

Material.

2 C, 5 RV, 1 LV in samples G08Fr, G12 Fr, G13Fr, He19-6, He19-26-28.

Occurrence.

Lower to Upper Aalenian, Opalinum to Concavum zones; SW Germany.

Description.

Very small, subrectangular. Anterior margin rounded with extremity slightly below mid-height; posterior margin rounded, apex above mid-height. Cardinal angles rounded in both valves, slightly more pronounced in left valve. Dorsal margin straight, ventral margin slightly convex. The shell surface is smooth, with a number of pits, which are difficult to recognize due to bad preservation. Internal details not observed.

Figures

Figure 7. (1) Eucytherura plumhoffi Tesakova, SMNS 70521 / 17, C, left view, L: 0.309 mm; sample He 19 - 7. (2) Eucytherura transversiplicata (Bate and Coleman), SMNS 70521 / 18, LV, L: 0.316 mm; sample He 19 - 3. (3) Eucytherura sp. 1 Franz et al., SMNS 70521 / 19, RV, L: 0.320 mm; sample He 19 - 12. (4) Eucytherura sp. 3 Franz, SMNS 70521 / 20, C, right view, L: 0.300 mm; sample He 19 - 18; (5) Aphelocythere dilgeri Franz et al., SMNS 70521 / 21, RV, L: 0.460 mm; sample He 19 - 18. (6) Aphelocythere pygmaea Plumhoff, SMNS 70521 / 22, C, right view, L: 0.343 mm; sample He 19 - 12; (7)? Aphelocythere sp. 1, SMNS 70423 / 119, C, right view, L: 0.308 mm; sample G 08 Fr; (8)? Pleurocythere sp., SMNS 70521 / 23, LV, L: 0.354 mm; sample He 19 - 1. (9) Acrocythere pumila Plumhoff, SMNS 70521 / 24, LV, L: 0.343 mm; He 19 - 12. (10) Praeschuleridea ventriosa (Fischer in Plumhoff), SMNS 70521 / 25, LV, L: 0.650 mm; sample Mue 19 - 1; (11) Kinkelinella (Kink.) sermoisensis (Apostolescu), SMNS 70521 / 26, LV, L: 0.656 mm; sample He 19 - 9; (12) aff. Ostracode A Ballent, SMNS 70521 / 27, RV, L: 0.290 mm; sample He 19 - 2. (13) Gen. et sp. indet. 3, Franz et al., SMNS 70521 / 28, RV, L: 0.342 mm; sample He 19 - 5; (14) Gen. et sp. indet. 5 Franz et al., SMNS 70521 / 29, RV, L: 0.310 mm; He 19 - 18; (15) Gen. et sp. indet. 8 Franz, SMNS 70521 / 30, RV, L: 0.280 mm; sample He 19 - 12. (16) Gen. et sp. indet. 10, SMNS 70521 / 31, LV, L: 0.300 mm; sample He 19 - 12. (17) Gen. et sp. indet. 11, SMNS 70521 / 32, LV, L: 0.324 mm; sample He 19 - 8. (1 - 3, 6 - 8, 10 - 12, 15 - 17) Opalinuston Formation, Lower Aalenian, Opalinum Zone; (4 - 5, 9, 14) Achdorf Formation, Upper Aalenian, (4 - 5, 14) Bradfordensis Zone (Gigantea Subzone), (9) Concavum Zone. Scale bars (if not indicated otherwise): 20 μm.

Figure 11. (1) Balowella catena (Franz et al.), SMNS 70521 / 80, C, right view, L: 0.329 mm; sample He 19 - 18. (2, 3);? Cytheropteron sp. 1, (2) SMNS 70521 / 81, LV, L: 0.322 mm; sample He 19 - 27; (3) SMNS 70521 / 82, RV, L: 0.355 mm; sample He 19 - 27. (4, 5) Procytheropteron aff. gramanni Brand, (4) SMNS 70521 / 83, LV, L: 0.373 mm; sample He 19 - 26; (5) SMNS 70521 / 84, RV, L: 0.305 mm; sample He 19 - 22. (6) Procytheropteron sp. 1 Franz et al., SMNS 70423 / 66, LV, L: 0.322 mm; sample G 20 b; (7) Aphelocythere recta Ohmert, SMNS 70521 / 85, C, right view, L: 0.460 mm; sample Ro 19 - 4. (8) Aphelocythere aff. recta, SMNS 70521 / 86, C, right view, L: 0.466 mm; sample Ro 19 - 4. (9) Aphelocythere sp. 1, SMNS 70521 / 87, RV, L: 0.630 mm; sample He 19 - 27; (10) " Asciocythere " sp., SMNS 70521 / 88, RV, L: 436 mm; sample He 19 - 26. (11) Eocytheridea elongata Bate, SMNS 70521 / 89, RV, L: 0.573 mm; sample He 19 - 21. (12) Eocytheridea lacunosa Bate, SMNS 70521 / 90, RV, L: 0.705 mm; sample He 19 - 25; (13, 14) Praeschuleridea cf. subtrigona, (13) SMNS 70521 / 91, C, right view, L: 0.512 mm; sample Ro 19 - 5; (14) SMNS 70521 / 92, RV, inner view, L: 0.512 mm; sample Ro 19 - 5; (15 - 17) Praeschuleridea sp. 1, (15) SMNS 70521 / 93, C, right view, L: 0.490 mm; sample He 19 - 27, (16) SMNS 70521 / 93, C, right view, (detail); (17) SMNS 70521 / 94, RV, L: 0.620 mm; L: 0.620 mm; sample He 19 - 27. (18) Pleurocythere ohmerti Franz et al., SMNS 70521 / 94, LV, L: 0.479 mm; sample Tst. 38 - 1988 (= He 19 - 27). Achdorf Formation, Upper Aalenian, (1, 6) Bradfordensis Zone (Gigantea Subzone), (2 - 5, 7 - 18) Concavum Zone. Scale bars (if not indicated otherwise): 20 μm.