Neogloboquadrina incompta (Cifelli)

Hanagata, S & Nobuhara, T, 2015, Illustrated guide to Pliocene foraminifera from Miyakojima, Ryukyu Island Arc, with comments on biostratigraph, Palaeontologia Electronica (Cambridge, England) 33 (8), pp. 1-142 : 48-51

Neogloboquadrina incompta (Cifelli)

Figures 17.7-17.14

1961 Globigerina incompta Cifelli , p. 84, pl. 4, figs. 1—5 (non 6, 7).

1973 Globigerina pachyderma (Ehrenberg) — Cifelli, pl. 1, figs. 1—7 (non Aristerospira pachyderma Ehrenberg, 1861 ).

1973 Globigerina incompta Cifelli — Cifelli, pl. 2, figs. 5—7.

1977 Globigerina pachyderma (Ehrenberg) — Kadar, p. 63, pl. 2, fig. 13.

1978 Neogloboquadrina pachyderma (Ehrenberg) — Keller (b), pl. 1, figs. 7—9; Keller (c), pl. 1, fig. 3, pl. 4, figs. 1—9.

1981 Neogloboquadrina incompta (Cifelli) — Saito, Thompson, and Breger, p. 108, pl. 34, fig. 2.

1982 Globigerina incompta Cifelli — Cifelli, pl. 3, figs. 1, 2 (non 3).

2005 Neogloboquadrina incompta (Cifelli) — Domitsu and Oda, fig. 3.8.

2006 Neogloboquadrina incompta (Cifelli) — Domitsu and Oda, figs. 6-5, 6-6.

PE Note: Corrigendum to Hanagata and Nobuharai. 2015

3 January 2016

Corrigendum to “Illustrated guide to Pliocene foraminifera from Miyakojima, Ryukyu Island Arc, with comments on biostratigraphy,”

Hanagata, Satoshi and Nobuhara, Takami. 2015. Palaeontologia Electronica 18.1.3A: 1-140. palaeo-electronica.org/content/2015/1016-foraminifera-of-miyakojima

2008 Neogloboquadrina incompta (Cifelli) — Domitsu and Oda, p. 6, pl. 4, figs. 4—6.

Remarks. According to Cifelli’s (1961) type figures, he included the dextral coiling form of Neogloboquadrina pseudopachyderma in the paratypes of N. incompta . It is obvious from his later work ( Cifelli, 1973, 1982) that he differentiated N. incompta from Neogloboquadrina pachyderma and other ‘neogloboquadrids’ not by test shape, but by coiling direction and surface encrustation. Domitsu and Oda (2008) and Oda and Domitsu (2009), on the other hand, treated the lobulate and umbilicusextra umbilicus aperture form as N. incompta irrespective of coiling direction. We basically agree with the latter view and do not attach importance to the coiling direction; however, formal emendation of the species based on type specimens has never been performed – this needs to be done in a future study.

Occurrence. Rare in the Onogoshi Formation, sporadic in the Minebari and Yonahama formations.

Figures

FIGURE 17. Family Globorotaliidae and Pulleniatinidae. All scale bars = 0.1mm. 1, 2. Neogloboquadrina acostaensis (Blow), 1: MPC-25996 from sample MK01 (Yonahama Formation, PL2); 2: MPC-25997 from sample MK02B (Minebari F., PL5). 3, 4. Neogloboquadrina blowi (Rögl and Bolli), 3: MPC-25998 from sample 6 (Yonahama F., PL2); 4: MPC- 25999 from sample 6-2 (Yonahama F., Yonahama F., PL2). 5, 6. Neogloboquadrina humerosa (Takayanagi and Saito), 5: MPC-26000 from sample 15 (Yonahama F., PL3); 6: MPC-26001 from sample MK02A (Minebari F., PL5). 7—14. Neogloboquadrina incompta (Cifelli), 7: MPC-26002 from sample 14-2 (Yonahama F., PL4); 8: MPC-26003 from sample 16 (Yonahama F., PL3); 9: MPC-26004 from sample 3-2-low-silt (Onogoshi F., PL1); 10: MPC-26005 from sample 10 (Onogoshi F., PL2); 11: MPC-26006 from sample 15 (Yonahama F., PL3); 12: MPC-26007 from sample MK01 (Yonahama F., PL2); 13: MPC-26008 from sample 6-2 (Yonahama F., PL2); 14: MPC-26009 from sample 3- 2-up-sand (Onogoshi F., PL1). Specimens of 8—10, right coiling (dextral) form; 11—14, left coiling (sinistral) form. 15—17. Neogloboquadrina pseudopachyderma (Cita, Premoli-Silva, and Rossi), 15: MPC-26010 from sample 12 (Minebari F., PL5); 16: MPC-26011 from sample MK01 (Yonahama F., PL2); 17: MPC-26012 from sample 2-2 (Minebari F., PL5). 15 and 16, right coiling (dextral) form; 17, left coiling (sinistral) form. 18, 19. Neogloboquadrina praehumerosa (Natori), 18: MPC-26013 from sample MK01 (Yonahama F., PL2); 19: MPC-26014 from sample MK02B (Minebari F., PL5). 20, 21. Pulleniatina obliquiloculata (Parker and Jones), 20: MPC-26018 from sample 17 (Yonahama F., PL2); 21: MPC-26019 from sample 5 (Minebari F., PL5). 20, left coiling (sinistral) form; 21, right coiling (dextral) form.