Bathycythere vanstraateni Sissingh, 1971

Sciuto, F & Rosso, M, 2015, Bathyal ostracods from the Santa Maria di Leuca deep-water coral province (northern Ionian Sea), Palaeontologia Electronica 8 (9), pp. 1-17 : 10

Bathycythere vanstraateni Sissingh, 1971

Figure 6.9

1971 Bathycythere vanstraateni Sissingh , p. 410, pl. 1, 2, figs. 2-4.

1971 Xandarosina n. nudum, Benson and Sylvester-Bradley, p. 68, figs. 3 a, b.

1975 Bathycythere vanstraateni Sissingh ; Breman, p. 213, pl. 4, fig. 20.

1980 Bathycythere vanstraateni Sissingh ; Colalongo and Pasini, p. 52, plate 4, figs. 7, 8.

1983 Bathycythere vanstraateni Sissingh ; Bonaduce et al., p. 463.

1985 Bathycythere vanstraateni Sissingh ; Montcharmont-Zei et al., pl. 1, fig. 7.

1988 Bathycythere vanstraateni Sissingh ; Colalongo and Pasini, p. 283.

1988 Bathycythere vanstraateni Sissing ; van Harten and Droste, p. 732, pl. 1, fig. 1.

1990 Bathycythere vanstraateni Sissingh ; Colalongo et al., p. 483.

1997 Bathycythere vanstraateni Sissingh ; Pasini and Colalongo, p. 18.

2004 Bathycythere vanstraateni Sissingh ; Mazzini, p. 48, figs. 25 K-N.

Remarks. This species is poorly represented in the SML area and is restricted to the Framework Coral facies (FC) and the Hardground fragments colonized by the Solitary Coral facies (SC).

B. vanstraateni is listed among the abyssal ostracods living in the Atlantic Ocean, and Pasini and Colalongo (1997) considered it as a psychrospheric species. It seems to be extinct in the Recent Mediterranean, from where it has been recorded from depths shallower than the SML ones ( van Harten, 1990).

Breman (1975) found this species in sediments from the Adriatic Sea dated to the basal Holocene including the AllerØd and the Younger Dryas climatic stages. van Harten and Droste (1988) stated that this species disappeared from the eastern Mediterranean about 9 Ka ago together with K. monosteracensis and M. adriatica , following an anoxic event related to sapropel deposition. A comparable distribution can be desumed from Colalongo et al. (1990, figure 3) for cores from the Tyrrhenian Sea.

Figures

FIGURE 6. 1, Bairdoppilata conformis (Terquem, 1878). PMC. O FS 16. RV, external lateral view (scale bar equals 500 µm); 2, Bythocypris obtusata (Sars, 1866). PMC. O FS 17. LV, external lateral view (scale bar equals 500 µm); 3, Anchistrocheles tenera (Breman, 1975). PMC. O FS 18. LV, external lateral view (scale bar equals 200 µm); 4, Macropyxis adriatica (Breman, 1975). PMC. O FS 19. LV, external lateral view (scale bar equals 500 µm); 5, Argilloecia acuminata Müller, 1894. PMC. O FS 20. RV, internal lateral view (scale bar equals 100 µm); 6, Krithe monosteracensis (Seguenza, 1880). PMC. O FS 21. RV, internal lateral view (trasparency, scale bar equals 250 µm); 7, Echinocythereis echinata Sars, 1866. PMC. O FS 22. RV, external lateral view (scale bar equals 500 µm); 8, Henryhowella ex H. hirta (Costa, 1853) group. PMC. O FS 23. LV, external lateral view (scale bar equals 200 µm); 9, Bathycythere vanstraateni Sissingh, 1971. PMC. O FS 24. RV, external lateral view (scale bar equals 200 µm); 10, Cytheropteron hadriaricum Bonaduce et al., 1975. PMC. O FS 25. RV, external lateral view (scale bar equals 100 µm); 11, Cytheropteron testudo Sars, 1869. PMC. O FS 26. RV, external lateral view (scale bar equals 200 µm); 12, Pseudocythere caudata Sars, 1866. PMC. O FS 27. LV, external lateral view (scale bar equals 200 µm); 13, Monoceratina mediterranea Sissingh, 1971. PMC. O FS 28. RV, external lateral view (scale equals bar 200 µm); 14, Paradoxostoma simile Müller, 1894. PMC. O FS 29. LV, internal lateral view (trasparency, scale bar equals 200 µm). (PMC. O FS 16–29 = Paleontological Museum Catania. Ostracoda Figured Specimens number 16 to 29. RV = right valve; LV = left valve).