ῐ㊰ᓥࡢἨᒙ⩌ࡽ⏘ฟࡍࡿࣥࣔࢼࢺ㢮
ᓊᮏ┾ࡦࡣࡃᆅᇦ◊✲ဨ
ࡣࡌࡵ
රᗜ┴ῐ㊰ᓥ༡㒊ࡢ୰⏕௦ⓑள⣖ᚋᮇ⣙ ᖺ๓ࡢᆅᒙ࡛࠶ࡿἨᒙ⩌ࡽࡣࠊከᙬ࡞ᾏ ὒ⏕≀⩌ࡢ▼ࢆ⏘ฟࡋࠊࡇࢀࡲ࡛ከࡃࡢ◊✲⪅ࡼࡗ࡚▼࣭ᒙᗎࡘ࠸࡚グ㍕◊✲ࡉࢀࠊࡑ ࡢྂ⏕ែ࣭ྂ⎔ቃࡀ᫂ࡽࡉࢀ࡚ࡁ࡚࠸ࡿࠋ࡞࡛ࡶࣥࣔࢼࢺ㢮ࡣࠊ▮㒊㛗ඞࡀグ㍕ࡋࡓ ࣉࣛࣅࢺࢭࣛࢫ3UDYLWRFHUDVࢹࢹࣔࢭࣛࢫ'LG\PRFHUDV<DEHࡀ᭷ྡ࡛ࠊ࡛ ࡶῐ㊰ࡢ▼࠸࠼ࡤࠊࡇࡢ␗ᖖᕳࡁࣥࣔࢼࢺࡢྡ๓ࡀᣲࡆࡽࢀࡿࠋࡉࡽࠊ୧ゅࠊ ᯇᮏ࣭୧ゅࡼࡗ࡚ࠊῐ㊰ᓥࡢࣥࣔࢼࢺ㢮ࡣ᳨ウࡉࢀከࡃࡢ᪂✀ࡀグ㍕ࡉࢀࡓࠋ
⚾⮬㌟ࡢῐ㊰ࡢㄪᰝࡶࠊ≉ࣥࣔࢼࢺ㢮⯆ࢆᣢࡗ࡚ ᖺ㡭ࡼࡾㄪᰝ᥇㞟ࡋ࡚ࡁࡓ ࡀࠊࡇࢀࡲ࡛⣙ ✀ࡢ⏘ฟࢆ☜ㄆࡍࡿࡇࡀ࡛ࡁ࡚࠸ࡿࠋ
ᖺࡢࠕඹ⏕ࡢࡦࢁࡤࠖ ྕ࡛⤂ࡉࡏ࡚࠸ࡓࡔ࠸ࡓ▼༑⬮㢮㸦ᓊᮏ㸧⥆࠸࡚ࠊᅇ ࡣࣥࣔࢼࢺ㢮ࢆ⤂ࡍࡿࠋ
⏘ᆅࡑࡢᴫせ
୰⏕௦ⓑள⣖ᚋᮇ࣊ࢺࢼୡࡢ࢝ࣥࣃࢽࣥ㝵ࡽ࣐ࢫࢺࣜࣄࢳࣥ㝵ୗ㒊ᑐẚࡉࢀ࡚࠸ ࡿῐ㊰ᓥࡢἨᒙ⩌ࡣࠊὪᮏᕷⅢཱྀ༡࠶ࢃࡌᕷೖᩥ㛗⏣ࡑࢀ༡࠶ࢃࡌᕷ‖ࢆ⤖ࡪ⥺ࡼࡾ༡ ഃศᕸࡋ࡚ࠊୖ࣭୰࣭ୗࡢ୕ࡘࡢளᒙ⩌ࡁࡃศࡅࡽࢀ࡚࠸ࡿᕷᕝ ࠋࣥࣔࢼ ࢺ㢮ࡣࠊ୰㒊ளᒙ⩌ࡢℿ⣼ᒙࢆ㝖ࡃᒙ‽ࡽ⏘ฟࡣ☜ㄆࡉࢀ࡚࠸ࡿࠋ
ᅗ ᆅ㉁ᅗࣥࣔࢼࢺ▼⏘ᆅ୧ゅ ࢆᨵኚ
せ࡞⏘ᆅ
すῐ⣼ᒙ
༡࠶ࢃࡌᕷ㜿㑣㈡ᮌሙᾏᓊ ༡࠶ࢃࡌᕷ‖ᾏᓊ ༡࠶ࢃࡌᕷෆཎ
༡࠶ࢃࡌᕷఀຍ௰㔝༡࠶ࢃࡌᕷᗈ⏣ᗈ⏣┴❧ࡩࢀ࠶࠸බᅬ
㜿㑣㈡⣼ᒙ ༡࠶ࢃࡌᕷఀẝᾏᓊ ༡࠶ࢃࡌᕷᚿ▱࣭ᚿ▱ዟ
㜿⣼ᒙ ༡࠶ࢃࡌᕷ⚟Ⰻส⸴ᾏᓊ࣭ඵᮌ Ὢᮏᕷ༓ⲡ࣭᫂⏣࣭⏤Ⰻ⏫ෆ⏣
ୗℿ⣼ᒙ
༡࠶ࢃࡌᕷℿ ྛᆅ ₻ᓮ࣭ோ㡭࣭ᆅ㔝࣭ᕝ࣭ᡶᕝ ᒣᮏ࣭ྜྷ㔝࣭㯮ᒾ
すῐ⣼ᒙ
㜿㑣㈡Ỉཱྀࡽᮾ᪉ྥࡢ‖ᾏᓊࡅ࡚ศᕸࡍࡿ‖㡫ᒾᒙࡉࢀࡿ㯮ⰍἾᒾᒙࡣῐ㊰ᓥࡢ ࣥࣔࢼࢺ▼ࢆ௦⾲ࡍࡿ Didymoceras awajiense (YABE) Pravitoceras sigmoidale YABEࢆከ⏘ࡍࡿࠋࡑࢀࡽࡢ⏘ฟᒙ‽ࡣࠊᮌሙᾏᓊࡲࡓఀຍ௰㔝➼࡛ࡣD. awajiense ࡀୗ ࡳࡽࢀࠊ50㹫ࡽᩘⓒ㹫ୖP . sigmoidaleࢆ⏘ฟࡍࡿࠋࡲࡓෆཎࡸ‖ᆅᇦ࡛ࡣD. awajiense ࡢ⏘ฟᒙ‽ࡣ☜ㄆࡉࢀ࡚࠸࡞࠸ࠋࡲࡓࡇࢀࡽࡢ‖㡫ᒾᒙࡽࡣࠊᮌሙᾏᓊ࡛Patagiosites laevis MOROZUMIࢆࠊࡲࡓ‖ᾏᓊ࡛ࡣSolenoceras cf. texanum (SHUMARD)ࠊPachydiscus sp.࡞ ࡢ⏘ฟࢆࡲࢀࡳࡿࠋࡲࡓᗈ⏣ࡢ┴❧ࡩࢀ࠶࠸බᅬ࡛ࡣࠊ㔝⌫ሙࡢ㐀ᡂᕤጞࡲࡾᮏᅄ㐃⤡ 㧗㏿㐨㊰ࡢᘓタࠊࡑࢀࡽᘬࡁ⥆࠸࡚⾜ࢃࢀࡓ┴❧ࡩࢀ࠶࠸බᅬࡢᩘᖺࢃࡓࡿ㐀ᡂᕤࡼࡗ
࡚ከࡃࡢ Pachydiscus awajiensis MOROZUMI ࢆ⏘ฟࡋࡓࠋࡲࡓ Zelandites cf. varuna
(FRBES)ࠊࡑࢀLibycoceras awajiense MATSUMOTO and MOROZUMIࢆ⏘ฟࡋࡓࠋ
㜿㑣㈡⣼ᒙ
ఀẝᾏᓊࡽᮾ᪉ྥࡢᚿ▱ᆅᇦࡅ࡚ࡣ㜿㑣㈡⣼ᒙࡢᚿ▱㡫ᒾᒙࡤࢀࡿཌ࠸Ἶᒾᒙࡀ ศᕸࡍࡿࠋఀẝᾏᓊ࡛ࡣ⌧ᅾ ‴タഛࡶᨵಟࡉࢀࡓᾏබᅬ࡛▼⏘ฟᒙࡣそࢃࢀ࡚ࡋࡲ ࡗࡓࡀࠊࡘ࡚ࡣPachydiscus awajiensis MOROZUMIࢆከࡃぢࡿࡇࡀ࡛ࡁࡓࠋᮏᅄ㐃⤡㧗 ㏿㐨㊰ࡢ㬆㛛ᾏᓙᶫࡀ㛤㏻ࡋࡓᙜῐ㊰ᓥഃࡢᬻᐃⓗ࡞ᩱ㔠ᡤ࡞ࡗࡓᚿ▱ዟ࡛ࡣࠊࡑࡢᕤ ࡛ከࡃࡢP. awajiensisࢆ⏘ฟࡋࡓࠋ㣤ᒣᑎཬࡧᚿ▱ᆅᇦࡢἾᒾᒙࡽࡶྠᵝࡢ≀ࢆぢࡿࡀࠊ㢼 ࡀ㐍ࢇࡔᆅ⾲ࡢ㟢㢌ࡽࡣಖᏑࡢⰋ࠸ࡶࡢࡣぢ࡞࠸ࠋࡲࡓࠊఀẝ࡛ࡣBaculites sp.ࢆぢࡓࠋ
㜿⣼ᒙ
ㅍ㭯⩚ᒣ⣔ࡢᒣ㯄ࡽ⚟Ⰻ࣭୕ཎ࣭Ὢᮏᆅᇦᗈࡃศᕸࡍࡿࡀࠊࡇࢀࡲ࡛ࣥࣔࢼࢺ㢮ࡢ
⾲ ῐ㊰ᓥࡢᒙᗎ⾲ᕷᕝ୧ゅ ࡼࡾͤ
ͤ1 ῐ㊰ᓥࡢἨᒙ⩌ࡢᒙᗎ㛵ࡋ࡚ࠊ୧ゅ (1985)ࡼࡿୗℿ⣼ᒙࡣᶓ⛣ᆅሢ㸦࠾࠺࠸ࡕ ࠸)ࡋࠊᒙᗎࡣ㜿ℿ⣼ᒙࡢ㛫ᥦၐ ࡋ࡚࠸ࡿࠋ
ᕷᕝ㸦㸧
⏘ฟࡀሗ࿌ࡉࢀࡓ㟢㢌ࡣከࡃ࡞࠸ࠋ⚟Ⰻส⸴ᾏᓊ࡛ࡣࢱ࣮ࣅࢱࢺᒙࡀⓎ㐩ࡋ࡚◁ᒾἾᒾࡢ⨾ࡋ ࠸ᒙࡀぢࡽࢀࠊࡇࡢᒙࡢἾᒾ㒊ࡽ⛥P. awajiensis ࡸPatagiosites sp.ࢆぢࡿࠋ
ࡲࡓᖹ㔝㒊ࡢ୕ཎᆅᇦࡢୣ㝠㒊ࡢἾᒾᒙࡽࡣࠊ⏘ฟࡣᑡ࡞࠸ࡀBaculites sp.ࡢሗ࿌ࡀࡉࢀ࡚ ࠸ࡿࠋㅍ㭯⩚ᒣ⣔ࡢᮾ㒊ࡢὪᮏᕷ༓ⲡࡽ⏤Ⰻ⏫ෆ⏣ᆅᇦࡣཌ࠸ἾᒾᒙࡀⓎ㐩ࡋࠊᜍ❳ࢆጞࡵ ᾏ⏕∐㢮ࡢ࣑࣓࢘࢞ࡸࣔࢧࢧ࢘ࣝࢫ㢮ࡢ⬨᳝ື≀ࡲࡓከࡃࡢ㈅㢮ࠊ࢘ࢽ࡞ࡢᲲ⓶ື≀ࠊ࢝ࢽ࣭ ࢚ ࣅ ࡢ ⏥ Ẇ 㢮 ඹ Nostoceras hetonaiense MATSUMOTO, Solenoceras cf. texanum (SHUMARD)ࠊPachydiscus aff. kobayashii SHIMIZUࠊHypophylloceras (Neophylloceras) hetonaiense MATSUMOTOࠊGaudryceras sp.ࠊHauericeras sp.ࠊBaculites sp.࡞⏘ฟࡋ࡚࠸ ࡿࠋࡲࡓὪᮏᕷ᫂⏣࡛ࡣAinoceras sp.?ࡢ⏘ฟࡶぢࡓࠋ
ୗℿ⣼ᒙ
ℿᾏᓊศᕸࡍࡿୗℿ⣼ᒙࡢࡰᇦ࡛Pachydiscus cf. subcompressus MATSUMOTOࡢ㛗 ᚄ20௨ୖࡢࡶࡢࢆ⏘ࡋࠊࡲࡓPachydiscus aff. gracilis MATSUMOTOࡶ㯮ᒾ࣭ྜྷ㔝࡛ࡣࡼࡃ ぢࡿࠋGaudryceras makarovense SHIGETA and MAEDA(ͤ2) ࠊGaudryceras sp.࡞ࢆ⏘ฟ ࡍࡿࠋᾏᓊᆅᇦ࡛ࡣࠊ▼ࡣᆅᒙࡽ㐟㞳ࡋࡓ⌫ᙧࡢࣀࢪ࣮ࣗࣝ୰ぢࡽࢀࡿሙྜࡀከ࠸ࠋᆅ㔝࣭ ோ㡭࡛ࡣⓑⰍ◁㉁Ἶᒾࡼࡾ Saghalinites sp., Anagaudryceras matsumotoi MOROZUMI, Zelandites cf.varuna (FRBES)ࠊᡶᕝ࣭ᒣᮏ࡛ࡣ P. cf. subcompressusHypophylloceras (Neophylloceras) hetonaiense MATSUMOTO, A. matsumotoi, ࡑࢀVertebrites sp.࡞ ࡢ⏘ฟࢆぢࡿࠋࡲࡓZelandites cf. varuna (FRBES)ࡶྛᆅࡽ⏘ࡋࠊ₻ᓮ࣭ྜྷ㔝࣭ᒣᮏࡽࡣ
Diplomoceras sp.࡞ࡢሗ࿌ࡶ࠶ࡿࠋ
࡞ࣥࣔࢼࢺࡢẆࡢᙧែⓗ࡞≉ᚩ
ᙧែⓗ≉ᚩࡸྠᐃࡘ࠸࡚ࡣࠊᯇᮏ࣭୧ゅࠊ୧ゅࠊ⚟ᒸ㸦㸧ࠊ୧ゅ࣭
㎷㔝ࠊ0DHGD 6KLJHWD࡞ࢆཧ⪃ࡋ࡚࠸ࡿࠋ
1. Didymoceras awajiense (YABE)
ࡽࡏࢇ≧ᕳ࠸ࡓẼᡣ㒊ࡽ࡞ࡿ⼺ሪࠊࡑࡢᕳࡁࡽ㞳ࢀ࡚ᆶࢀୗࡀࡾࠊ㌿ࡋ࡚㹁Ꮠ≧ ࡞ࡿయᡣఫᡣࢆࡶࡘ␗ᖖᕳࠋࡋࡋᕳࡁ᪉ࡣಶయࡼࡾࡁࡃኚ␗ࡀ࠶ࡾ୍ᐃ࡛ࡣ࡞࠸ࠋ
2. Pravitoceras sigmoidaleYABE
ࡰྠ୍ᖹ㠃࡛ 6 Ꮠ≧ᕳ࠸ࡓẆࢆࡶࡕࠊ᪥ᮏࡢ␗ᖖᕳࣥࣔࢼࢺࡢ୰࡛ࡶ≉ኚࢃࡗࡓᕳ ࡁ᪉ࢆࡍࡿࠋᗂẆࡣᑠࡉࡃሪୖᕳࡁࠊࡑࡢᚋᩘᕳࡁᖹ㠃ⓗ ᕳࡁ≧ᕳ࠸ࡓ࠶ࠊ ࡑࢀࡲ࡛ࡢᕳ㞳ࢀ࡚㏫᪉ྥᕳࡃࡼ࠺࡞ࡾࠊ6 Ꮠ≧ࡢẆᆺࢆࡘࡃࡿ
3. Nostoceras hetonaiense MATSUMOTO
ᗂẆࡣ⣽ࡃ┤⥺ⓗ࡛ࠊࡑࡢᚋ⼺⎔ࡣኴࡉࢆቑࡋ࡞ࡀࡽ⼺᪕≧ᕳࡁࡋࡓࡢࡕୗ᪉ᆶࢀୗ ࡀࡾࠊࡑࡢ࠶ࡧẼᡣ㒊ྥࡗ࡚㹓Ꮠ≧యᡣࡣᡂ㛗ࡍࡿࠋ⼺⎔ࡢ᩿㠃ࡣᙧࠊẆࡣඛ
ࡢDidymocerasࡸPravitocerasྠᵝิࡢ࣎ࡀぢࡽࢀࡿࠋ
4.Solenoceras cf. texanum (SHUMARD)
ᑠᆺࡢ࣮࣊ࣆࣥ≧ࡘᢡࢀ࡞ࡗࡓࠊ⼺⎔ࡢ᩿㠃ࡣࡰᙧ࡛Ẇ⾲ࡣิࡢ࣎ࡀ࠶ࡿࠋ
5.Baculites sp.
┤⥺ⓗ࡞Წ≧ࡢẆࢆࡶࡕࠊẆ⾲ࡣ┠❧ࡗࡓ㣭ࡣ࡞࠸ࡀࠊయᡣ㒊࡛Ẇ⾲ࡣἼ࠺ࡗ࡚࠸ࡿࠋ ᢡࢀࡓ≧ែ࡛ᐦ㞟ࡋ࡚ࣀࢪ࣮ࣗࣝྵࡲࢀ࡚࠸ࡿࡇࡀከࡃࠊ༢⊂࡛ぢࡘࡿࡇࡣᑡ࡞࠸ࠋ
6. Hypophylloceras (Neophylloceras)hetonaiense MATSUMOTO
Ẇ⾲ࡣከᩘࡢ┤⥺ⓗ࡞⣽⫘ࡀぢࡽࢀࠊ⻤ᕳ࡛࣊ࢯࡣ⊃ࡃࠊẆࡣᑠᆺ࡛ࠊᡶᕝ࡛ࡣᑠᆺࡢ≀ࢆ ࡼࡃぢࡿࠋ㯮ᒾ࡛ࡣ㛗ᚄ FP ⛬ᗘࡢࡶࡢࡶሗ࿌ࡀ࠶ࡿࠋ㜿⣼ᒙࡢෆ⏣࡛ࡶ⏘ฟࡍࡿࠋ
7.Saghalinites sp.
Ẇࡣᐦᕳ࡛࣊ࢯࡣᗈࡃࠊ⼺⎔᩿㠃ࡣᙧ࡛࠶ࡿࠋ⼺⎔⾲㠃ࡣ┠❧ࡗࡓ㣭ࡣ࡞࠸ࠊୗℿ⣼ᒙ ࡢோ㡭ᆅ㔝࡛ࡣ᭱ࡶࡼࡃࡳࡿࡀᅽຊࢆཷࡅኚᙧࡋࡓࡶࡢࡀከ࠸ࠋ
8.Gaudryceras makarovense SHIGETA and MAEDA
ᙜึࠊ㜰ࡢἨᒙ⩌࡛グ㍕ࡉࢀࡓ Gaudryceras izumiensis ఝ࡚࠸ࡿࡀࠊ⼺⎔ࡣ ࡰ┤⥺ⓗ࡞SᏐࢆ♧ࡍ⼺⫘ࡀ࠶ࡾࠊG. izumiensis ぢࡽࢀࡿࡼ࠺࡞࿘ᮇⓗ⌧ࢀࡿ⫘ࡣ ࡞ࡃࠊ⫘ࡢᩘࡶᑡ࡞ࡃࡼࡾ⢒࠸ࠋ㯮ᒾ࡛ࡢ⏘ฟࡀ┠❧ࡘࠋ
9.Zelandites cf. varuna (FRBES)
ᑠᆺ࡛Ẇ⾲ࡣ┠❧ࡗࡓ㣭ࡣ࡞ࡃࠊ⻤ᕳ࡛࣊ࢯࡣ⊃࠸ࡃ῝࠸ࠋすῐ⣼ᒙࡢᗈ⏣ୗℿ⣼ᒙࡢ ྛᆅ࡛⏘ฟࡋ࡚࠸ࡿࠋ
10.Pachydiscus awajiensisMOROZUMI
Ẇࡣ୰ᆺ࡛⼺⎔ࡢᨺᑕ⫘ࡣẆཱྀഃᑡࡋ‴᭤ࡋࠊ࠶ࡿ࠸ࡣఱᮏ࠾ࡁ࡛࡚ࡃࡿศᒱ⫘ ࠸࠺⫘ࡀ≉ᚩ࡛ࠊᮏᅄ㐃⤡㧗㏿㐨㊰㛵㐃ࡲࡓᗈ⏣ࡢ┴❧ࡩࢀ࠶࠸බᅬࡢ୍㐃ࡢᕤ࡛㔞⏘ ฟࡋࡓࠋすῐ࣭㜿㑣㈡࣭㜿࣭ୗℿ⣼ᒙࡢྛᆅࡽࡇࢀఝࡓPachydiscas sp.ࡢ⏘ฟࡶ࠶ࡿࠋ
11. Pachydiscus aff. kobayashii SHIMIZU
Ẇࡣ୰㹼ᆺ࡛ࠊ๓ฟࡢP. awajiensis ࡢࡼ࠺࡞ศᒱ⫘ࡣࡳࡽࢀࡎ⫘ࡣᡂ㛗ඹᨺᑕ⫘ࡢ ࣆࢵࢳࡣ⢒ࡃ࡞ࡾࡁ࡞ಶయ࡛ࡣẆཱྀ㏆࡛ࡣ⫘ࡀᙅࡃ࡞ࡿࠋ㜿⣼ᒙࡢෆ⏣࡛ከ⏘ࠋ
12. Pachydiscus cf. subcompressus MATSUMOTO
ᆺࡢẆࢆࡶࡕࠊᨺᑕ⫘ࡣᙉࡃ⼺⎔ࡢ᩿㠃ࡣᴃ࡛ ࣊ࢯࡣᗈࡃ࡚ὸࡃࠊୗℿ⣼ᒙ࡛ࡣ࡚ࡢ ᆅᇦࡽ⏘ฟࡍࡿࠋࡲࡓோ㡭࡛ࡣ㛗ᚄ FP ㏆࠸ࡶࡢࡶሗ࿌ࡉࢀ࡚࠸ࡿࠋ
13. Pachydiscus aff. gracilis MATSUMOTO
Ẇࡣᆺ࡛Ẇ⾲ࡢ⫘ࡣࡳࡽࢀࡎࠊᖹᆠ࡛࣊ࢯࡣ⊃ࡃ῝࠸ࠋ ࣀࢪ࣮ࣗࣝ୰ࡳࡿࡀࠊ₽ࡉࢀᡥ
ᖹኚᙧࢆཷࡅࡓࡶࡢࡀከ࠸ࠋୗℿ⣼ᒙࡢ㯮ᒾ࡛ࡢ⏘ฟࡀ࠶ࡿࠋ
14. Patagiosites laevis MOROZUMI
୰ᆺࡢẆ࡛ࠊᕳࡢᙉࡉࡣ୰⛬ᗘ࡛࣊ࢯࡣᗈ࠸ࠊ⼺⎔ࡣᴃ࡛⼺⫘ࡣࡽ࡛ࠊ࿘ᮇⓗࡃࡧࢀ ࡀ⌧ࢀࡿࠋすῐ⣼ᒙࡢᮌሙࠊ㜿⣼ᒙࡢส⸴ࠊ⚟Ⰻ‴ෆࡢ↮ᓥࡽࡢሗ࿌ࡀ࠶ࡿࠋ
15. Libycoceras awajiense MATSUMOTO and MOROZUMI
୰ᆺ࡛ᐦᕳࠊẆ⾲ࡣ┤⥺ⓗ࡞⣽⫘ࡀ࠶ࡿࠋすῐ⣼ᒙࡢᗈ⏣࡛ࡢ▼ࡀ၏୍ࡢᶆᮏ࡛࠶ࡿࠋ
ࡲࡵ
㸯㸧᪂ࡓ࡞ࣥࣔࢼࢺ㢮ࡢ⏘ฟᆅࡢⓎぢ
୧ゅࡣࠊῐ㊰ᓥ࡛ࡢࣥࣔࢼࢺࡢ⏘ฟᆅࡋ࡚ ࣨᡤࢆ࠶ࡆ࡚࠸ࡿࡀࠊḟࠎ᪂ࡓ ࡞⏘ฟᆅࡀぢࡘࡾࠊ ᖺࡢ⌧Ⅼ࡛ࡣ ࢣᡤࡢࡰࡗ࡚࠸ࡿࠋᚋࡶ᪂ࡓ࡞ㄪᰝࡼࡗ ࡚ቑ࠼ࡿྍ⬟ᛶࡀࡁ࠸ࠋ
㸰㸧ῐ㊰ᓥ࡛ࡢ᪂ሗ࿌ࡢࣥࣔࢼࢺ㢮
ࡇࢀࡲ࡛ᮍሗ࿌࡛࠶ࡿࣥࣔࢼࢺ㢮ࡋ࡚ Pachydiscus aff.kobayashii, Hauericeras sp., Diplomoceras sp., Ainoceras sp.?ࡢ㸲✀ࢆⓎぢࡋࡓࠋ
≉ࠊෆ⏣ࡢ㜿⣼ᒙෆ⏣Ἶᒾᒙࡢ᭱ୖ㒊ᒙࡽPachydiscus aff.kobayashii SHIMIZU
ᚋࡢㄢ㢟
᪂⏘ᆅࡢ㛤Ⓨ㛵ࡋ࡚ࡣࠊ㜿⣼ᒙࢆ୰ᚰㄪᰝࢆ῝ࡵࡿࡇࠊࡲࡓࠊࣥࣔࢼࢺ㢮ࡢ ▼ࡀᮍⓎぢࡢℿ⣼ᒙࢆㄪᰝࡋࡓ࠸ࠋ
ࡉࡽࡣ⏘ฟ▼ࡢศ㢮ྠᐃ⪏࠼ࡿᶆᮏࡢ✚ࢆࡋ࡚࠸ࡁࡓ࠸ᛮࡗ࡚࠸ࡿࠋ
࠾ࡶ࡞ཧ⪃ᩥ⊩
⚟ᒸᖾ୍ᾏ㐨ࣥࣔࢼࢺ༤≀㤋SSᾏ㐨᪂⪺♫
ᕷᕝᾈ୍㑻Ἠᒙ⩌ụ㎶ᒎ⏕⦅ࠕ ศࡢ රᗜ┴ᆅ㉁㖔⏘ᅗཬࡧㄝ᫂᭩ࠖ㸦රᗜ┴ SS㸧 ᓊᮏ┾ῐ㊰ᓥࡢἨᒙ⩌ࡽ⏘ฟࡍࡿ▼༑⬮㢮ඹ⏕ࡢࡦࢁࡤ
ᯇᮏ㐩㑻ࠊ୧ゅⰾ㑻Ἠᒣ⬦ࡢᚋᮇⓑள⣖ࣥࣔࢼࢺⱥᩥ㜰ᕷ❧⮬↛ྐ༤≀㤋◊✲ሗ
࿌ SOV
0DHGD+DQG6KLJHWD<0DDVWULFKWLDQDPPRQRLGIDXQDIURPWKH3XJDFKHYRDUHDVRXWKHUQ 6DNKDOLQ5XVVLDQ)DU(DVW1DWLRQDO6FLHQFH0XVHXP0RQRJUDSKV
୧ゅⰾ㑻ῐ㊰ᓥ⏘ࡢᚋᮇⓑள⣖࢝ࣥࣃࢽࣥ㹼࣐ࢫࢺࣜࣄࢳࣥࣥࣔࢼࢺⱥᩥ 㜰ᕷ❧⮬↛ྐ༤≀㤋◊✲ሗ࿌ SOV
୧ゅⰾ㑻⏬ᒎゎㄝ᭩ࠕἨᒙ⩌ࡢ▼ࠖSSᚨᓥ┴❧༤≀㤋
୧ゅⰾ㑻ࠊ㎷㔝Ὀஅ ⏬ᒎゎㄝ᭩ࠕࣥࣔࢼࢺࡢࡍ࡚ࠖSSᚨᓥ┴❧༤≀㤋 <DEH<1RWHRQ7KUHH8SSHU&UHWDFHRXV$PPRQLWHVIURP-DSDQRXWVLGHRI+RNNDLGR
-*HRO6RF7RN\R>@SO>@
ᅗ∧ ῐ㊰ᓥࡢἨᒙ⩌ࡽ⏘ฟࡍࡿࣥࣔࢼࢺ㢮
ᅗ∧ㄝ᫂
Pravitoceras sigmoidale > ෆཎ ‖ @
Didymoceras awajienseᮌሙ
Pachydiscus awajiensis> ᗈ⏣ ᚿ▱ዟ ส⸴ @
Zelanditescf. varunaᗈ⏣
HypophyllocerasNeophyllocerashetonaienseᡶᕝ
Saghalinites sp.ோ㡭 Pachydiscus subcompressusᡶᕝ
Pachydiscus gracilis 㯮ᒾ Gaudryceras makarovense㯮ᒾ Nostoceras hetonaienseෆ⏣
Solenoceras cf.texanumෆ⏣ Baculites sp.ఀẝ
