Globorotalia crassaformis (Galloway and Wissler)

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 : 44

Globorotalia crassaformis (Galloway and Wissler)

Figures 15.9, 15.10

1927 Globigerina crassaformis Galloway and Wissler (a), p. 41, pl. 7, fig. 12.

1921 Pulvinulina crassa (d’Orbigny) — Cushman, p. 338, pl. 67, fig. 3.

1962 Globorotalia crassaformis (Galloway and Wissler) — Parker, p. 235, pl. 4, figs. 17, 18, 20, 21.

1967 Globorotalia crassaformis (Galloway and Wissler) — Parker, p. 176, pl. 30, figs. 1— 3.

1968 Globorotalia crassaformis (Galloway and Wissler) — Huang, pl. 61, pl. 11, figs. 7, 11.

1969 Globorotalia (Truncorotalia) crassaformis (Galloway and Wissler) — Blow, p. 347, pl. 4, figs. 1—3, pl. 37, figs. 1—4.

1974 Globorotalia (Turborotalia) crassaformis (Galloway and Wissler) — Ujiié and Ōki, pl. 4, figs. 1, 2.

1975 Globorotalia (Turborotalia) crassaformis crassaformis (Galloway and Wissler) — Ibaraki and Tsuchi, pl. 3, fig. 9.

1976 Globorotalia (Turborotalia) crassaformis crassaformis (Galloway and Wissler) — Natori, p. 229, pl. 3, fig. 2.

1978 Globorotalia crassaformis (Galloway and Wissler) — Oda, p. 57, pl. 9, figs. 1—3.

1977 Globorotalia crassaformis (Galloway and Wissler) — Kadar, p. 68, pl. 7, fig. 38.

1978 Globorotalia crassaformis crassaformis (Galloway and Wissler) — Keller (a), pl. 2, figs. 5—12.

1981 Globorotalia crassaformis (Galloway and Wissler) — Saito, Thompson, and Breger, pp. 129, 130, pl. 43, fig. 2.

1983 Globorotalia (Truncorotalia) crassaformis (Galloway and Wissler) — Kennett and Srinivasan, p. 146, pl. 34, figs. 6—8.

1985 Globorotalia crassaformis crassaformis (Galloway and Wissler) — Bolli and Saunders, p. 233, figs. 36.6, 36.7.

1985 Globorotalia (Turborotalia) crassaformis crassaformis (Galloway and Wissler) — Ibaraki, pp. 123, 124, pl. 7, figs. 1, 2.

1985 Globorotalia (Turborotalia) crassaformis (Galloway and Wissler) — Ujiié, p. 112, pl. 12, figs. 2—4, 8, 9, pl. 13, figs. 1, 6.

1994 Globorotalia (Truncorotalia) crassaformis (Galloway and Wissler) — Jones, p. 103, pl. 103, figs. 11, 12.

1994 Truncorotalia crassaformis (Galloway and Wissler) — Loeblich and Tappan, p. 102, pl. 186, figs. 1—9.

2004 Truncorotalia crassaformis (Galloway and Wissler) — Hanagata, pl. 3, fig. 2.

Remarks. Although, in a previous report ( Hanagata, 2004), the generic name Truncorotalia was applied to plano-convex globorotaliids, following the taxonomy of Loeblich and Tappan (1987), we here assign those species to Globorotalia . The phylogenetic relationship between two clades of plano-convex planktonic foraminiferal groups is still unclear; i.e., Globorotalia miozea — conoidea — conomiozea — puncticulata — inflata lineage and Globorotalia cibaoensis — juanai — crassula — crassaformis — tosaensis — truncatulinoides lineage. These are assumed to have evolved independently from the same species, Globorotalia praescitula ( Norris et al., 1994) . A study of the Miocene differentiation from G. praescitula will resolve this problem.

Occurrence. Common in the upper part of the Yonahama Formation up to the Minebari Formation.

Figures

FIGURE 15. Family Epistominidae and Globorotaliidae. All scale bars = 0.1mm, unless otherwise indicated. 1, 2. Hoeglundina elegans (d'Orbigny) large form, 1: MPC-26324 from sample 2-2 (Minebari Formation, PL5); 2: MPC- 26325 from sample 4 (Minebari F., PL5). 3, 4. Clavatorella aff. suturanii Giannelli and Salvatorini, 3: MPC-25930 from sample 5 (Minebari F., PL5); 4: MPC-25931 from sample MK01 (Yonahama F., PL2). 5, 6. Globorotalia conoidea Walters, 5: MPC-25968 from sample 7 (Yonahama F., PL4); 6: MPC-25969 from sample 8-2 (Yonahama F., PL4). 7, 8. Globorotalia conomiozea Kennett, 7: MPC-25970 from sample 3 (Onogoshi F., PL1); 8: MPC-25971 from sample 6 (Yonahama F., PL2). 9, 10. Globorotalia crassaformis (Galloway and Wissler), 9: MPC-25972 from sample MK02A (Minebari F., PL5); 10: MPC-25973 from sample MK02B (Minebari F., PL5). 11, 12. Globorotalia cultrata (d'Orbigny), 11: MPC-25974 from sample MK01 (Yonahama F., PL2); 12: MPC-25975 from sample MK02A (Minebari F., PL5).