日本古生物学会公式ウェブサイト1983b, pl. 11, figs. 6a-c, text-fig. 15 locality...

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Calcareous Nannofossils 7

Calcareous Nannofossils

Tokiyuki Sato

Institute of Applied Earth Sciences, Faculty of Engineering and Resource Science,

Akita University Tegata Gakuencho, Akita 010-8502, Japan

Alisphaera unicornis Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 18, pl. 6, figs. 7-8 Holotype: Negative ON-11 Pacific Ocean (14°40'S, 155°08'W) Living Recent Calciosolenia? bimurata Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 18-19, pl. 7, fig. 1 Holotype: Negative ON-12 Pacific Ocean (10°03'S, 154°55'W) Living Recent Coccolithus streckeri Takayama & Sato, 1987 Init. Repts. DSDP, vol. 94, p. 690, pl. 1, figs. 4a-b, pl. 2, figs. 1-10 Holotype: TOCCN 3538 (1) North Atlantic Ocean, DSDP Leg 94, Hole 608 (42°50.21'N, 23°05.25'W) Sample 94-608-5-5, 46-47 cm latest Pliocene Crassidiscus backmanii Okada, 1990 Proc. ODP, Sci. Results, vol. 115, p. 151, pl. 1, figs. 15, 16, pl. 3, figs. 5-9 Holotype: YGUES 1001 Tropical Indian Ocean (03°54.9'S, 60°33.1'E) Sample 115-709C-23X-1, 40-41 cm late Oligocene Crenalithus parvulus Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 6, pl. 2, figs. 1, 2 Holotype: Negative ON-3 Pacific Ocean (10°00'N, 155°05'W) Living Recent Crenalithu parvulus tecticentrum Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 7, pl. 2, figs. 3, 4, 7 Holotype: Negative ON-4 Pacific Ocean (10°00'N, 155°05'W) Living Recent

Crenalithus punctatus Okada & McIntyre, 1977 Micropaleontology, vol. 23, no.1, p.7-8, pl. 2, figs. 8, 9 Holotype: Negative ON-6 Pacific Ocean (10°00'N, 155°05'W) Living Recent Cricosphaera quadrilaminata Okada & McIntyre, 1977 Micropaleontology, vol. 23, no.1, p. 15, pl. 6, figs. 5-6 Holotype: Negative ON-10 Pacific Ocean (10°03'S, 154°55'W) Living Recent Discoaster gladiatus Nishida, 1969 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 75, p. 145-146, pl. 17, fig. 4 Holotype: NC-13R-30 Nagatesaki near Cape Suzu in the northern part of Noto Peninsula, Suzu, Ishikawa Prefecture Akagami Shale, Suzu Formation middle Miocene Discoaster japonicus Nishida, 1969 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 75, p. 146, pl. 17, fig. 5 Holotype: NC-4R-111 Hojuji, Uwada-cho, Suzu, Ishikawa Prefecture Hojuji diatomaceous mudstone, Suzu Formation late early Miocene Discoaster notoensis Nishida, 1969 Trans. Proc. Palaeont. Soc. Japan, N.S., no.75, p. 147, pl. 17, fig. 6 Holotype: NC-13R-36 Nagatesaki near Cape Suzu in the northern part of Noto Peninsula, Suzu, Ishikawa Prefecture Akagami Shale, Suzu Formation middle Miocene Discoaster trifucatus Nishida, 1969 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 75, p. 148, pl. 16, fig. 4 Holotype: NC-9S Nagatesaki near Cape Suzu in the northern part of Noto Peninsula, Suzu, Ishikawa Prefecture Iida diatomaceous mudstone, Suzu Formation middle Miocene Discolithina japonica Takayama, 1967 Jahrb. Geol. Bundesanst. (Wien), vol. 110, p. 189-190, pl. 9, pl. 10. figs. 1, 2a-d. Holotype: IGPS no. 75144 (slide) and no. 2600/65 (Electron micrograph)

8 T. Sato

An exposure along the Tonegawa River, near the Shishiba raiload station (Narita Line), Choshi, Chiba Prefecture Iioka Formation middle Pleistocene Emiliania huxleyi corona Okada & McIntyre, 1977 Micropaleontology, vol. 23, no.1, p. 9, pl.1, figs. 1-4, 6, 7 Holotype: Negative ON-1 Pacific Ocean (35°00'N, 154°57'W) Living Recent Florisphaera profunda Okada & Honjo, 1973 Deep-Sea Research, vol. 20, p. 373-374, pl. 2, nos. 4, 5 Holotype: HU-1 (Film) Central Pacific Living Recent Florisphaera profunda Okada & Honjo var. elongata Okada & McIntyre, 1980 INA News letter vol. 2, no. 2, p. 81 Holotype: Okada and Honjo, 1973, pl. 2, no. 6 Central Pacific Living Recent Gephyrocapsa crassipons Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 10, pl. 2, figs. 5, 6 Holotype: Negative ON-5 Pacific Ocean (2°27'N, 154°57'W) Living Recent Helicosphaera omanica Sato, Kameo & Takayama, 1991 Proc. ODP, Sci. Results vol. 117, p. 50, pl. 1, figs. 1a-3b Holotype: TOCCN 16952 (1) Arabian Sea, Indian Ocean, ODP Leg 117, Hole 721A (16°40.636'N, 59°51.879'E) Sample 117-721A-4H-3, 115-117 cm late Pliocene to early Pleistocene Helicosphaera pavimentum Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 14, pl. 4, figs. 6-7 Holotype: Negative ON-9 Atlantic Ocean (44°02'N, 40°55'W) Living Recent Helladosphaera fastigata Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 29, pl. 11, figs. 8, 9 Holotype: Negative ON-22 Pacific Ocean (00°01'S, 141°59'E) Living Recent

Oolithotus fragilis cavum Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 11-12, pl. 4, figs. 4, 5 Holotype: Negative ON-8 Pacific Ocean (10°03'S, 154°55'W) Living Recent Pseudococcolithus biporosus Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 315, pl. 31, figs. 12-17 Holotype: pl. 31, fig.16 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus deltoides Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 313-314, pl. 30, fig. 22 Holotype: pl. 30, Fig.22 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus fusiformis Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 313, pl. 30, figs. 11-16 Holotype: pl. 30, fig. 12 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus nodulosus Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 315, pl. 31, figs. 18-26 Holotype: pl. 31, fig. 18 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus oblongus Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 314-315, pl. 31, figs. 3-11 Holotype: pl. 31, fig. 3 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus orbicularis Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 313, pl. 30,

Calcareous Nannofossils 9

figs. 17-21 Holotype: pl. 30, fig. 20 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus oviformis Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 314, pl. 31, fig. 2 Holotype: pl. 31, fig. 2 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus reticulatus Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 312, pl. 30, figs. 1-4 Holotype: pl. 30, fig. 1 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus rotundatus Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 314, pl. 31, fig. 1 Holotype: pl. 31, fig. 1 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Pseudococcolithus striatus Nishida, 1968 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 71, p. 313, pl. 30, figs. 5-10 Holotype: pl. 30, fig. 6 Chojabarusaki Cape, Motomurabure, Moroyoshi, Ashibe-Cho, Iki-Gun, Nagasaki Prefecture Chojabaru Formation Miocene Reticulofenestra ampla Sato, Kameo & Takayama, 1991 Proc. ODP, Sci. Results vol. 117, p. 50, pl. 1, figs. 4a-6b Holotype: TOCCN 16954 (1) North Atlantic Ocean, DSDP Leg 94, Hole 607 (41°00.07' N, 32°57.44' W) Sample 94-607-13HCC earliest late Pliocene Reticulofenestra asanoi Sato & Takayama, 1992 Centenary of Japanese Micropaleontology, K. Ishizaki and T. Saito eds., p. 458-460, figs. 3-7～13 Holotype: TOCCN 16950 (4)

Just above the tephra bed U6 of the Umegase Formation exposed in the "Yoro Keikoku" of Yoro Gawa River, Ishigami, Boso Peninsula, Chiba Prefecture Umegase Formation middle Pleistocene (1.16-0.85Ma) Reticulofenestra japonica Nishida,1979 Bull. Nara Univ. Educ., vol. 28, no. 2, p. 105, pl. 1, figs. 1-3 Holotype: pl. 17, fig. 2 in Nishida (1971), NUETEM-KC18R-1 A quarry of Hane Industry Co., Nobori, Hane, Muroto, Kochi Prefecture Nobori Formation early late Pliocene (2.75-3.66Ma) Reticulofenestra pacifica Nishida, 1979 Bull. Nara Univ. Educ., vol.28, no. 2, p. 106, pl. 1, figs. 4-6 Holotype: pl. 1, fig. 4 (NUETEM-KI15R-15) Sadeku, Kikai-cho, Oshima-gun, Kagoshima Prefecture Somachi Formation late Pliocene Syracosphaera ampliora Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 19-20, pl. 7, figs. 9-10 Holotype: Negative ON-13 Atlantic Ocean (37°59'N, 70°58'W) Living Recent Syracosphaera borealis Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 20, pl. 10, fig. 8 Holotype: Negative ON-20 Atlantic Ocean (52°48'N, 35°29'W) Living Recent Syracosphaera epigrosa Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 20-21, pl. 7, figs. 5-6 Holotype: Negative ON-14 Pacific Ocean (38°54'N, 141°54'E) Living Recent Syracosphaera exigua Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 21, pl. 8, figs. 10-11 Holotype: Negative ON-15 Pacific Ocean (13°30'N, 155°00'W) Living Recent Syracosphaera corrugis Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 21-22, pl. 8, figs. 3, 6 Holotype: Negative ON-18 Pacific Ocean (38°54'N, 141°54'E) Living

10 T. Sato

Recent Syracosphaera orbiculus Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 25, pl. 9, figs. 4-6 Holotype: Negative ON-16 Atlantic Ocean (38°03'N, 75°57'W) Living Recent Syracosphaera protrudens Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 26-27, pl. 10, fig. 3 Holotype: Negative ON-19 Atlantic Ocean (35°06'N, 47°54'W) Living Recent Syracosphaera rotula Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 27, pl. 9, figs. 9, 12 Holotype: Negative ON-17 Pacific Ocean (34°00'N, 141°00'E) Living Recent Umbilicosphaera angustiforamen Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 12, pl. 3, figs. 10, 11 Holotype: Negative ON-7 Atlantic Ocean (44°01'N, 40°55'W) Living Recent Umbilicosphaeara maceria Okada & McIntyre, 1977 Micropaleontology, vol. 23, no. 1, p. 12-13, pl. 1, fig. 8 Holotype: Negative ON-2 Pacific Ocean (2°00'N, 155°02'W) Living Recent

Dinoflagellates 11

Dinoflagellates

Hiroshi Kurita1 and Kazumi Matsuoka2

1Department of Geology, Faculty of Science, Niigata University, Niigata 950-2181, Japan

2Laboratory of Coastal Environmental Sciences, Faculty of Fisheries, Nagasaki University,

Nagasaki 852-8521, Japan Achomosphaera callosa Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS30-2 (10.8/130.4); Matsuoka, 1983b, pl. 11, figs. 6a-c, text-fig. 15 Locality NNS-30, Hiroya, Kamikawa-mura, Higashi-kanbara- gun, Niigata Prefecture (37°36.5' N, 139°25.7' E) Tokonami Formation (correlative to the Nishiyama Formation) Pliocene or younger Apteodinium vescum Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNA3-5 (16.3/127.2); Matsuoka, 1983b, pl. 5, fig. 7; Jan du Chene et al., 1986, pl. 12, fig. 7 Locality NNA-3, Matsuoka, Shibata City, Niigata Prefecture (37°53.6' N, 139°19.9' E) Shimoseki Formation (correlative to the Nanatani Formation) Late Early to Middle Miocene (Apteodinium ? vescum Matsuoka, 1983 by Lucas-Clarke (1987, p. 180) as followed by Williams et al. (1998)) Ascostomocystis granosa Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NTS1-3 (7.6/148.8); Matsuoka, 1983b, pl. 8, figs. 5a-b; Matsuoka and Head, 1992, pl. 1, figs. 12-15 Locality NTS-1, 0.8 km north of Mt. Takatsubo, Arakawa-cho, Iwafune-gun, Niigata Prefecture (38°5.0' N, 139°28.8' E) Akadani Formation (correlative to the Nanatani Formation) Late Early to Middle Miocene (Cyclopsiella granosa (Matsuoka, 1983) Head et al., 1992. This palynomorph species belongs to Group Acritarcha Evitt, 1963, not to dinoflagellate, according to the original description (Matsuoka, 1983, p. 141) and to Matsuoka and Head (1992, p. 170). The prefix of the slide and sample number for the holotype is inconsistently specified as "NST" in the text and in the plate caption (Matsuoka, 1983, p. 141 and p. 150)) Batiacasphaera minuta (Matsuoka, 1983) Matsuoka and Head, 1992 see Tectatodinium minutum Matsuoka, 1983

Bellatudinium hokkaidoanum Kurita and Matsuoka, 1994 Review of Palaeobotany and Palynology, vol. 84, p. 129-153, pls. I-II, text-figs. 1-7 Holotype: NSM KR904-003/Unsieved-1, R1 (103.0/14.2), slide deposit number MPC-4598; Kurita and Matsuoka, 1994, pl. 1, fig. 1 Locality KR904-003, Futamata-sawa tributary of Chikubetsu- River, Haboro-cho, Tomamae-gun, Rumoi Province, Hokkaido (44°24.0' N, 141°54.3' E) Lower part of the Sankebetsu Formation Late Middle? to Late Eocene (Type specimens temporarily stored at the JAPEX Research Center, Chiba, Japan) Brigantedinium asymmetricum Matsuoka, 1987 Bull. Fac. Liberal Arts, Nagasaki Univ., Nat. Sci., vol. 28, no. 1, p. 35-123, pls. 1-19, text-figs. 1-9 Holotype: CESN slide no. AK2-2 (100.4/44.7); Matsuoka, 1987, pl. 5, figs. 10-11 Locality AK-2, Akkeshi Bay, Kushiro Province, Hokkaido, Japan. (43°2' N, 144°48' E) Surface sediment Recent (Williams et al. (1998) stated that this name was not validly published in Matsuoka (1987) because the genus Brigantedinium was not validly published at that time) Brigantedinium grande Matsuoka, 1987 Bull. Fac. Liberal Arts, Nagasaki Univ., Nat. Sci., vol. 28, no. 1, p. 35-123, pls. 1-19, text-figs. 1-9 Holotype: CESN slide no. SR8-2 (15.2/143.0); Matsuoka, 1987, pl. 5, figs. 1-2 Locality SR-8, Lake Saroma-ko, Abashiri Province, Hokkaido (44°1' N, 143°52' E) Surface sediment Recent (Williams et al. (1998) stated that this name was not validly published in Matsuoka (1987) because the genus Brigantedinium was not validly published at that time) Brigantedinium irregulare Matsuoka, 1987 Bull. Fac. Liberal Arts, Nagasaki Univ., Nat. Sci., vol. 28, no. 1, p. 35-123, pls. 1-19, text-figs. 1-9 Holotype: CESN slide no. AK2-2 (85.5/31.7); Matsuoka, 1987, pl. 5, figs. 15-16 Locality AK-2, Akkeshi Bay, Kushiro Province, Hokkaido (43°2' N, 144°48' E) Surface sediment Recent (Williams et al. (1998) stated that this name was not validly published in Matsuoka (1987) because the genus Brigantedinium was not validly published at that time. This cyst species is equivalent to a motile form Protoperidinium denticulatum (Gran and Braarud, 1935) Balech, 1974,

12 H. Kurita and K. Matsuoka

according to Matsuoka (1987, p. 57)) Capillicysta fusca Matsuoka and Bujak in Matsuoka et al., 1987 Micropaleontology, vol. 33, p. 214-229, pls. 1-2, text-figs. 1-9 Holotype: CESN slide SZ561204-R2; Matsuoka and Bujak in Matsuoka et al., 1987, pl. 1, figs. 1,2; Head, 1994b, pl. 2, figs. 7-9; Fensome et al., 1995, Figs. 1-2-p. 1493. Locality SZ561204, Unosaki Coast, Onnagawa, Oga Peninsula, Oga City, Akita Prefecture (39°51.9' N, 139°50.5' E) Upper part of the Onnagawa Formation Late Middle to early Late Miocene Corrudinium harlandii Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS7-3 (14.2/138.3); Matsuoka, 1983b, pl. 4, figs. 6a-c, text-fig. 11; Jan du Chene et al., 1986, pl. 17, figs. 15-17. Locality NNS-7, Haizume, Nishiyama-cho, Kariwa-gun, Niigata Prefecture (37°29.2' N, 138°40.8' E) Nishiyama Formation Pliocene to earliest Pleistocene Cribroperidinium ? granomembranaceum (Matsuoka, 1983) Lentin and Williams, 1985 see Millioudodinium granomembranaceum Matsuoka, 1983 Cyclopsiella granosa (Matsuoka, 1983) Head et al., 1992 see Ascostomocystis granosa Matsuoka, 1983 Damassadinium heterospinosum (Matsuoka, 1983) Fensome et al., 1993 see Danea heterospinosa Matsuoka, 1983 Danea heterospinosa Matsuoka, 1983 Review of Palaeobotany and Palynology, vol. 40, p. 115-126, pls. I-II, text-figs. 1-4 Holotype: CESN Slide no. NAG33-1 (7uIII); Matsuoka, 1983c, pl. 1, figs. 1a-f, text-fig. 2 River Kali Puru, Kalisongo near Nanggulan, about 20 km west of Yogjakarta, central Java, Indonesia. (8°2.3' S, 110°10.3' E) Nanggulan Formation Middle Eocene (Damassadinium heterospinosum (Matsuoka, 1983) Fensome et al., 1993. Williams et al. (1998) stated that the species name Danea heterospinosa was validly published even though the generic name Danea is illegitimate, following I.C.B.N. Article 55.1. The age of the holotype falls within a range represented by the CP13 Zone to CP14 Zone of Okada and Bukry (1980)) Diphyes latiusculus Matsuoka, 1974 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 94, p. 319-340, pls. 44-46, text-fig. 1-3, tab. 1 Holotype: CESN slide KM-1162 (16.3/8.4); Matsuoka, 1974, pl.

44, figs. 6a-b. Locality 1, level of Sample 5, Fujiwara-cho, Nara City, Nara Prefecture (34°38.9' N, 135°51.1' E) Toyoda Formation, Fujiwara Group Early to Middle Miocene (Orthographic correction: Diphyes latiusculum Matsuoka, 1974) Distatodinium fusiforme (Matsuoka, 1974) Bujak and Matsuoka, 1986 see Tanyosphaeridium fusiform Matsuoka, 1974 Ensiculifera carinata Matsuoka, Kobayashi and Gaines, 1990 Bull. Plankt. Soc. Japan, vol. 37, no. 2, p. 127-143, pls. I-III, figs. 1-5 Holotype: Matsuoka, Kobayashi and Gaines, 1990, Fig. 3 (icnotype) Gokasho Bay, Mie Prefecture (33°40' N, 136°40' E) Surface sediment Recent (This species was established on the basis of living cysts as well as of motile cells incubated and cultured out from the cysts. For the nomenclatural type, only an illustration, expressed as icnotype in the original text, was designated as the holotype (I.C.B.N. Article 8.1)) Ensiculifera imariense Kobayashi and Matsuoka, 1995 Jour. Phycol., vol. 31, p. 147-152, figs. 1-23, tab. 1 Holotype: Kobayashi and Matsuoka, 1995, Figs. 3, 16 (icnotype) Imari Bay, Saga Prefecture, Kyushu (33°21.9' N, 129°46.2' E) Surface sediment Recent (This species was established on the basis of living cysts as well as of motile cells incubated and cultured out from the cysts. For the nomenclatural type, only an illustration, expressed as icnotype in the original text, was designated as the holotype (I.C.B.N. Article 8.1)) Exochosphaeridium brevispinosum Matsuoka, 1984 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 134, p. 374-387, pls. 71-74, text-fig. 1 Holotype: CESN slide NG33-2 (6gI); Matsuoka, 1984, pl. 72, figs. 7a-b River Kali Puru, Kalisongo near Nanggulan, about 20 km west of Yogjakarta, central Java, Indonesia (8°12.3' S, 110°10.3' E) Nanggulan Formation Middle Eocene (The age of the holotype falls within a range represented by the CP13 Zone to CP14 Zone of Okada and Bukry (1980)) Exochosphaeridium reticulatum Matsuoka, 1984 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 134, p. 374-387, pls.

Dinoflagellates 13

71-74, text-fig. 1 Holotype: CESN slide NG43-2 (1gIV); Matsuoka, 1984, pl. 72, figs. 1a-b River Kali Puru, Kalisongo near Nanggulan, about 20 km west of Yogjakarta, central Java, Indonesia. (8°12.3' S, 110°10.3' E) Nanggulan Formation Middle Eocene (The age of the holotype falls within a range represented by the CP13 Zone to CP14 Zone of Okada and Bukry (1980)) Glaphyrocysta circularis Matsuoka, 1984 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 134, p. 374-387, pls. 71-74, text-fig. 1 Holotype: CESN slide NG39-5 (4xI); Matsuoka, 1984, pl. 71, figs. 2a-b River Kali Puru, Kalisongo near Nanggulan, about 20 km west of Yogjakarta, central Java, Indonesia (8°12.3' S, 110°10.3' E) Nanggulan Formation Middle Eocene (The age of the holotype falls within a range represented by the CP13 Zone to CP14 Zone of Okada and Bukry (1980)) Glaphyrocysta dentata Matsuoka, 1984 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 134, p. 374-387, pls. 71-74, text-fig. 1 Holotype: CESN slide NG39-5 (2fIII); Matsuoka, 1984, pl. 71, figs. 1a-b River Kali Puru, Kalisongo near Nanggulan, about 20 km west of Yogjakarta, central Java, Indonesia (8°12.3' S, 110°10.3' E) Nanggulan Formation Middle Eocene (The age of the holotype falls within a range represented by the CP13 Zone to CP14 Zone of Okada and Bukry (1980)) Hystrichokolpoma denticulata Matsuoka, 1974 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 94, p. 319-340, pls. 44-46, text-fig. 1-3, tab. 1 Holotype: CESN slide KM-045 (13.8/1.5); Matsuoka, 1974, pl. 44, figs. 3a-b Locality 1, level of Sample 27, Fujiwara-cho, Nara City, Nara Prefecture, Japan. (34°38.9' N, 135°51.1' E) Toyoda Formation, Fujiwara Group Early to Middle Miocene Hystrichokolpoma elliptica Matsuoka, 1974 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 94, p. 319-340, pls. 44-46, text-fig. 1-3, tab. 1. Holotype: CESN slide KM-022 (18.6/7.2); Matsuoka, 1974, pl. 44, figs. 2a-b. Locality 1, level of Sample 27, Fujiwara-cho, Nara City, Nara Prefecture, Japan. (34°38.9' N, 135°51.1' E) Toyoda Formation, Fujiwara Group. Early to Middle Miocene. (Orthographic correction: Hystrichokolpoma ellipticum

Matsuoka, 1974) Hystrichokolpoma okinawaia Matsuoka, 1979 Review of Palaeobotany and Palynology, vol. 28, p. 47-60, pls. 1-2, text-figs. 1-5 Holotype: CESN slide no. OKD-5, position 3WI; Matsuoka, 1979, pl. 2, figs. 3-4 Locality OK-2, Kisembaru, Kin-son, Kunigami-gun, Okinawa Prefecture, Japan. (26°28.5' N, 127°54.8' E) Naha Formation Early Pleistocene (Orthographic correction: Hystrichokolpoma okinawaium Matsuoka, 1974. The type locality is not clearly specified in the original description) Hystrichokolpoma pacifica Matsuoka, 1979 Review of Palaeobotany and Palynology, vol. 28, p. 47-60, pls. 1-2, text-figs. 1-5 Holotype: CESN slide no. OKD-3, position 4pIII; Matsuoka, 1979, pl. 1, figs. 1-3 Locality OK-2, Kisembaru, Kin-son, Kunigami-gun, Okinawa Prefecture (26°28.5' N, 127°54.8' E) Naha Formation Early Pleistocene (Orthographic correction: Hystrichokolpoma pacificum Matsuoka, 1974. The type locality is not clearly specified in the original description) Impagidinium japonicum Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS23-2 (19.0/135.7); Matsuoka, 1983b, pl. 6, figs. 2a-c; Jan du Chene et al., 1986, pl. 59, figs. 1-3 Locality NNS-23, Ochimizu, Washima-mura, Santo-gun, Niigata Prefecture (37°34.3' N, 138°44.3' E) Nishiyama Formation Pliocene to earliest Pleistocene (Senior synonym of Impagidinium pacificum Bujak, 1984, according to Bujak and Matsuoka (1986, p. 236)) Lejeunecysta ? epidoma Matsuoka, 1987 Bull. Fac. Liberal Arts, Nagasaki Univ., Nat. Sci., vol. 28, no. 1, p. 35-123, pls. 1-19, text-figs. 1-9 Holotype: CESN slide no. AK2-1 (15.2/131.7); Matsuoka, 1987, pl. 9, figs. 5-6 Locality AK-2, Akkeshi Bay, Kushiro Province, Hokkaido (43°2' N, 144°48' E) Surface sediment Recent (Questionable assignment to the genus Lejeunecysta by the original description (Matsuoka, 1987, p. 59))

14 H. Kurita and K. Matsuoka

Lejeunecysta psuchra Matsuoka, 1987 Bull. Fac. Liberal Arts, Nagasaki Univ., Nat. Sci., vol. 28, no. 1, p. 35-123, pls. 1-19, text-figs. 1-9 Holotype: CESN slide no. AK2-2 (87.6/37.0); Matsuoka, 1987, pl. 9, figs. 7-8 Locality AK-2, Akkeshi Bay, Kushiro Province, Hokkaido (43°2' N, 144°48' E) Surface sediment Recent Lingulodinium sadoense Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NHA2-5 (17.0/145.7); Matsuoka, 1983b, pl. 10, figs. 1a-c Locality NHA-2, Haizume, Nishiyama-cho, Kariwa-gun, Niigata Prefecture, Japan. (37°28.9' N, 138°41.2' E) Haizume Formation Early Early Pleistocene (Kokinos and Anderson (1995, p. 162) claimed that this species is a taxonomic junior synonym of Lingulodinium machaerophorum (Deflandre and Cookson, 1955) Wall, 1967. An early Early Pleistocene age of the holotype is confirmed by calcareous nannofossil data that indicate a level between the FAD of Gephyrocapsa caribbeanica and the FAD of large Gephyrocapsa spp. (Kobayashi et al., 1995)) Melitasphaeridium angustum Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS17-4 (7.5/131.2); Matsuoka, 1983b, pl. 4, figs. 2a-b Locality NNS-17, Takitani-Shinden, Nishiyama-cho, Kariwa-gun, Niigata Prefecture (37°27.1' N, 138°38.2' E) Nishiyama Formation Pliocene to earliest Pleistocene Melitasphaeridium aquabile Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NTE19-2 (16.0/124.0); Matsuoka, 1983b, pl. 3, figs. 7a-b, text-fig. 10 Locality NTE-19, Gomoto, Teradomari-cho, Santo-gun, Niigata Prefecture (37°36.1' N, 138°45.2' E) Uppermost part of the Teradomari Formation or the basal part of the Shiiya Formation; a horizon below the Gomoto Tuff Beds Latest Miocene to earliest Pliocene (Harland, Head and Wrenn (in Head and Wrenn, 1992, p. 10) judged that this species is a taxonomic junior synonym of Melitasphaeridium choanophorum (Deflandre and Cookson, 1955) Harland and Hill, 1979. The X-Y coordinates for the holotype is incorrectly specified as "(7.7/145.1)" in the original text (Matsuoka, 1983, p. 114), although correctly specified as "(16.0/124.0)" in the plate caption (Matsuoka, 1983, p. 148))

Millioudodinium granomembranaceum Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNA1-1 (5.0/130.4); Matsuoka, 1983b, pl. 1, figs. 1a-c, text-fig. 14; Jan du Chene et al., 1986, pl. 27, figs. 1-2 Locality NNA-1, 1.7 km northwest of Mt. Takatsubo, Arakawa-cho, Iwafune-gun, Niigata Prefecture (38°5.4' N, 139°28.4' E) Nashinoki Formation (correlative to the Nanatani Formation) Late Early to Middle Miocene (Cribroperidinium ? granomembranaceum (Matsuoka, 1983) Lentin and Williams, 1985. Lentin and Williams (1985) assigned this species questionably to the genus Cribroperidinium) Operculodinium echigoense Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNA4-1 (12.1/125.4); Matsuoka, 1983b, pl. 7, fig. 5; Matsuoka et al., 1997, pl. 3, figs. 1-3 Locality NNA-4, Minami-imogawa, Shitada-mura, Minami-kanbara-gun, Niigata Prefecture (37°32.2' N, 139°8.0' E) Nanatani Formation Late Middle Miocene (The age of the holotype is confirmed by planktonic foraminifera data that indicate a level of the Blow (1969)'s N9 Zone or higher (Maiya, 1978) and by calcareous nannofossil data that indicate a level of the Okada and Bukry (1980)'s CN5a Subzone or higher (Hiramatsu et al., 1997)) (Junior synonym of Operculodinium centrocarpum (Deflandre and Cookson, 1955) Wall, 1967, according to Matsuoka et al. (1997)) Operculodinium longispinigerum Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS7-1, (13.0/136.7); Matsuoka, 1983b, pl. 9, figs. 8a-b; Head and Wrenn, 1992, pl. 5, figs. 4, 8, 11 Locality NNS-7, Haizume, Nishiyama-cho, Kariwa-gun, Niigata Prefecture (37°29.2' N, 138°40.8' E) Nishiyama Formation Pliocene to earliest Pleistocene Operculodinium wallii Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS7-2 (19.3/138.4); Matsuoka, 1983, pl. 9, figs. 1a-b Locality NNS-7, Haizume, Nishiyama-cho, Kariwa-gun, Niigata Prefecture (37°29.2'N, 138°40.8' E) Nishiyama Formation Pliocene to earliest Pleistocene

Dinoflagellates 15

(Head (in Head and Wrenn, 1992, p. 24) considered this species to be a possible taxonomic junior synonym of Operculodinium centrocarpum (Deflandre and Cookson, 1955) Wall, 1967) Reticulatosphaera stellata Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide JY1-5 (11.5/144.6); Matsuoka, 1983b, pl. 4, fig. 8, text-fig. 10 A slope of the Yamato Bank in the Sea of Japan, water depth ca. -1,600 m (39°30.3' N, 134°38.5' E) A sample dredged from the sea floor Probably Pliocene or younger (Bujak and Matsuoka (1986, p. 238) judged that this species is a taxonomic junior synonym of Reticulatosphaera actinocoronata (Benedeck, 1972) Bujak and Matsuoka, 1986) Selenopemphix hamanaensis Kojima, 1989 Trans. Proc. Palaeont. Soc. Japan, N.S., no. 155, p. 197-211, figs. 1-7, tabs. 1-2 Holotype: BOITO slide no. 85H-1/10.60-10.61 m (1) (97.1/33.2L) (OCU-1); Kojima, 1989, Figs. 5-1,2 Core 85H-1, interval 10.60 m - 10.61 m, Lake Hamana-ko, Shizuoka Prefecture (34°46.0' N, 137°35.5' E) A sediment between the Kawagodaira Pumice and the Kikai-Akahoya Tephra Holocene (an age between 3,000yBP and 6,300 y BP) Spiniferites asperulus Matsuoka, 1983 Palaeontographica, Abt. B, no. 187, p. 89-154, pls. 1-15, text-figs. 1-22 Holotype: CESN KMD slide NNS11-5 (12.0/130.8); Matsuoka, 1983b, pl. 12, fig. 3 Locality NNS-11, Takitani-Shinden, Nishiyama-cho, Kariwa-gun, Niigata Prefecture (37°26.8' N, 138°38.6' E) Nishiyama Formation Pliocene to earliest Pleistocene (Illustration of the holotype is incorrectly specified as "pl. 12, fig. 2" in the original text (Matsuoka, 1983, p. 132), although correctly specified as "pl. 12, fig. 3" in the plate caption (Matsuoka, 1983b, p. 152)) Spiniferites ellipsoideus Matsuoka, 1983 Palaeontographica, Abt. B, no. 187,

日本古生物学会公式ウェブサイト1983b, pl. 11, figs. 6a-c, text-fig. 15 locality...

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