�@

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�iƒvƒ]ƒVƒA�jƒIƒŠƒGƒ“ƒ^ƒŠƒX
Puzosia (Puzosia) orientalis Matsumoto
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�²‹v‘w
Nakagawa Town
Yezo Group, Saku Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
Žû‘ ”Ô�†�FNMA00096

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�iƒ�ƒ\ƒvƒ]ƒVƒA�jƒ`ƒ”ƒFƒ“ƒVƒX
Puzosia (Mesopuzosia) chivensis Arkhanguelsky
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�²‹v‘w
Nakagawa Town
Yezo Group, Saku Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
–x“à�@�^
Žû‘ ”Ô�†�FNMA00205

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�@ƒTƒCƒ“ƒgƒEƒ‹ƒV
Puzosia saintoursi
ŽY’n�EŽY�o‘w™Ã
Occurrence
ƒ}ƒ_ƒKƒXƒJƒ‹
Madagascar
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒAƒ‹ƒrƒAƒ“
Late Cretaceous Albian
�Ì�WŽÒ
Collector
�w“ü
Žû‘ ”Ô�†�FNMA00347

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�iƒ�ƒ\ƒvƒ]ƒVƒA�jƒ^ƒJƒnƒVƒC
Puzosia (Mesopuzosia) takahashii (Matsumoto)
ŽY’n�EŽY�o‘w™Ã
Occurrence
�¬•½’¬�@‰ÚˆÎ‘wŒQ
Obira Town
Yezo Group,
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
•l–{�@–¾
Žû‘ ”Ô�†�FNMA00444

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�iƒ�ƒ\ƒvƒ]ƒVƒA�jƒCƒ“ƒhƒpƒVƒtƒBƒJ
Puzosia (Mesopuzosia) indopacifica (KOSSMAT)
ŽY’n�EŽY�o‘w™Ã
Occurrence

�¬•½’¬’B•z�@‰ÚˆÎ‘wŒQ
Obira Town, Tappu

Yezo Group,

Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
‰¡ˆäŠˆ�é
Žû‘ ”Ô�†�FKYC486

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�iƒ�ƒ\ƒvƒ]ƒVƒA�jƒCƒ“ƒ^�[ƒ�ƒfƒBƒA
Puzosia (Mesopuzosia) intermedia (KOSSMAT) ?
ŽY’n�EŽY�o‘w™Ã
Occurrence
ŽY’n•s–¾�@‰ÚˆÎ‘wŒQ
Unknown
Yezo Group,
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
‰¡ˆäŠˆ�é
Žû‘ ”Ô�†�FKYCH120

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒvƒ]ƒVƒA�iƒ�ƒ\ƒvƒ]ƒVƒA�jƒpƒVƒtƒBƒJ
Puzosia (Mesopuzosia) pacifica MATSUMOTO
ŽY’n�EŽY�o‘w™Ã
Occurrence
“Ï‘O’¬ŒÃ’O•Ê�@‰ÚˆÎ‘wŒQ
Tomamae Town, Kotambetsu
Yezo Group,
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
‰¡ˆäŠˆ�é
Žû‘ ”Ô�†�FKYC257

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒWƒ“ƒ{ƒCƒZƒ‰ƒX�@ƒvƒ‰ƒkƒ‰ƒ`ƒtƒHƒ‹ƒ�
Jimboiceras planulatiforme (Jimbo)
ŽY’n�EŽY�o‘w™Ã
Occurrence
—[’£Žs�@‰ÚˆÎ‘wŒQ
Yubari City
Yezo Group,
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
•x“c�W‰›

Žû‘ ”Ô�†�FKYC736

‰¡ˆäŠˆ�éƒRƒŒƒNƒVƒ‡ƒ“

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒpƒLƒfƒXƒ‚ƒZƒ‰ƒX�@ƒpƒLƒfƒXƒRƒCƒf
Pachydesmoceras pachydescoide Matsumoto
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ
Nakagawa Town
Yezo Group,
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠúƒ`ƒ…�[ƒ�ƒjƒAƒ“
Late Cretaceous Turonian
�Ì�WŽÒ
Collector
�Eˆõ
Žû‘ ”Ô�†�FNMA00195

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒpƒLƒfƒXƒ‚ƒZƒ‰ƒX�@ƒRƒXƒ}ƒ`ƒC
Pachydesmoceras kossmati Matsumoto
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�@�¼’m—ÇŽu“à‘w�H
Nakagawa Town
Yezo Group, Nishichirashinai Formation?
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒRƒjƒAƒVƒAƒ“
Late Cretaceous Coniasian
�Ì�WŽÒ
Collector
–x“à�@�^
Žû‘ ”Ô�†�FNMA00208

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒfƒXƒ‚ƒZƒ‰ƒX�iƒVƒ…�[ƒhƒEƒŠƒCƒQƒ‰�[�jƒWƒƒƒ|ƒjƒJƒ€
Desmoceras (Pseudouhligella) japonicum Yabe
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�@�²‹v�ì‘w
Nakagawa Town, Yasukawa
Yezo Group, Sakugawa Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒZƒmƒ}ƒjƒAƒ“
Late Cretaceous Cenomanian
�Ì�WŽÒ
Collector
Žû‘ ”Ô�†�FNMA00010

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒfƒXƒ‚ƒZƒ‰ƒX�@ƒGƒ]ƒGƒ“ƒ[
Desmoceras ezoense
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�@�²‹v�ì‘w
Nakagawa Town
Yezo Group, Sakugawa Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒZƒmƒ}ƒjƒAƒ“
Late Cretaceous Cenomanian
�Ì�WŽÒ
Collector
�¼–ì�F�M

Žû‘ ”Ô�†�FNMA00154

•¶Œ£�G‘��ì�E�¼–ì�i1999�j–kŠC“¹’†�ì’nˆæ‚̃Zƒmƒ}ƒjƒAƒ“ŠKƒAƒ“ƒ‚ƒiƒCƒgŒQ�W�D’†�ì’¬‹½“yŽ‘—¿ŠÙ‹I—v�uŽ©‘RŽ�‚ÌŒ¤‹†�v‘æ‚Q�†�C1-40�D

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒfƒXƒ‚ƒZƒ‰ƒX�@ƒ‰ƒeƒBƒhƒ‹ƒTƒ^ƒ€
Desmoceras latidorsatum
ŽY’n�EŽY�o‘w™Ã
Occurrence
ƒ}ƒ_ƒKƒXƒJƒ‹
Madagascar
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒAƒ‹ƒrƒAƒ“
Late Cretaceous Albian
�Ì�WŽÒ
Collector
�w“ü
Žû‘ ”Ô�†�FNMA00322

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒ_ƒ�ƒVƒeƒX�@ƒ_ƒ�ƒV
Damesites damesi (Jimbo)
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQƒIƒ\ƒEƒVƒiƒC‘w
Nakagawa Town
Yezo Group, Osoushinai Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒJƒ“ƒpƒjƒAƒ“
Late Cretaceous Campanian
�Ì�WŽÒ
Collector
�Eˆõ
Žû‘ ”Ô�†�FNMA00231

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒ_ƒ�ƒVƒeƒX�@ƒZƒ~ƒRƒXƒ^�[ƒ^ƒX
Damesites semicostatus Matsumoto
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�@ƒIƒ\ƒEƒVƒiƒC‘w
Nakagawa Town
Yezo Group, Osoushinai Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒJƒ“ƒpƒjƒAƒ“
Late Cretaceous Campanian
�Ì�WŽÒ
Collector
�Eˆõ
Žû‘ ”Ô�†�FNMA00417

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒ_ƒ�ƒVƒeƒX�@ƒXƒKƒ^
Damesites sugata (FORBES)
ŽY’n�EŽY�o‘w™Ã
Occurrence

“Ï‘O’¬ŒÃ’O•Ê�@‰ÚˆÎ‘wŒQ

Tomamae Town
Yezo Group

Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒTƒ“ƒgƒjƒAƒ“
Late Cretaceous Santonian
�Ì�WŽÒ
Collector
‰¡ˆäŠˆ�é

Žû‘ ”Ô�†�FKYC42‚W

‰¡ˆäŠˆ�éƒRƒŒƒNƒVƒ‡ƒ“

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒ_ƒ�ƒVƒeƒX�@ƒAƒCƒkƒAƒkƒX
Damesites ainuanus MATSUMOTO
ŽY’n�EŽY�o‘w™Ã
Occurrence
“Ï‘O’¬ŒÃ’O•Ê�@‰ÚˆÎ‘wŒQ
Tomamae Town, Kotambetsu
Yezo Group,
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒTƒ“ƒgƒjƒAƒ“
Late Cretaceous Santonian
�Ì�WŽÒ
Collector
‰¡ˆäŠˆ�é
Žû‘ ”Ô�†�FKYC188

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒnƒEƒGƒŠƒZƒ‰ƒX�@ƒAƒ“ƒOƒXƒ^ƒ€
Hauericeras angustum Yabe
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQ�@ƒIƒ\ƒEƒVƒiƒC‘w
Nakagawa Town
Yezo Group, Osoushinai Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒJƒ“ƒpƒjƒAƒ“
Late Cretaceous Campanian
�Ì�WŽÒ
Collector
�‚‹´’B–í
Žû‘ ”Ô�†�FNMA00438

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒzƒvƒŠƒeƒX�@ƒfƒ“ƒ^ƒ^ƒX
Hoplites dentatus (Perssoptera & Linthia)
ŽY’n�EŽY�o‘w™Ã
Occurrence
ƒtƒ‰ƒ“ƒX
France
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒAƒ‹ƒrƒAƒ“
Late Cretaceous Albian
�Ì�WŽÒ
Collector
�w“ü
Žû‘ ”Ô�†�FNMA00356

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒLƒbƒ`ƒiƒCƒeƒX�@ƒCƒVƒJƒ�ƒC
Kitchinites isikawai (Jimbo)
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQƒIƒ\ƒEƒVƒiƒC‘w
Nakagawa Town
Yezo Group, Osoushinai Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒJƒ“ƒpƒjƒAƒ“
Late Cretaceous Campanian
�Ì�WŽÒ
Collector
�Eˆõ
Žû‘ ”Ô�†�FNMA00044

ŽÊ�^‚̃XƒP�[ƒ‹ƒo�[‚Í1cm; Scale bar =1 cm

ƒLƒbƒ`ƒiƒCƒeƒX�@ƒWƒƒƒ|ƒjƒJƒX
Kitchinites japonicus Spath
ŽY’n�EŽY�o‘w™Ã
Occurrence
’†�ì’¬�@‰ÚˆÎ‘wŒQƒIƒ\ƒEƒVƒiƒC‘w
Nakagawa Town
Yezo Group, Osoushinai Formation
Žž‘ã
Age
’†�¶‘ã”’ˆŸ‹IŒãŠú�@ƒJƒ“ƒpƒjƒAƒ“
Late Cretaceous Campanian
�Ì�WŽÒ
Collector
�Eˆõ
Žû‘ ”Ô�†�FNMA00202