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Kannonji Formation (Kujiraoka, 1953) Tsuchiya, 1989
Jozenji facies at the upper part was re-defined as Jozenji Formation by Tsuchiya (1989).
Invalid synonym: Shinazawa Formation
- Sedimentary facies: Shallow marine (Foraminifera)
- Depth of water: 120 m or shallower
- Lithofacies: Sandy silt
- Lithofacies (Minor): Silt, Mud, Acidic tuff, Sands
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kannonji, Sakata city, Yamagata pref.; Nikko river - Kusatsu river - Shimokurokawa - Jozenji - Ishida - Takaoyama - Yamaya - Kamiaosawa - Nikko river - Owarabi - Maruyama, Masuda, Sakata city, Yamagata pref.; Tsukinohara, Yuza city, Akumi county, Yamagata pref.; Mount Haguro - Hagurokaitaku, Tsuruoka city, Yamagata pref.; Shinzawa, Shonai city, Higashitagawa county, Yamagata pref.
- Fossils: Plants (Comptonia kidoi), Trace fossils
- Fossils (Omma-Manganji fauna): Acila (Acila) divaricata, Acila (Truncacila) insignis, Acila (Truncacila) nakazimai, Aloidis sp., Anadara castellata, Anadara trilineata amicula, Anomia lischkei, Antigona lamellaris uzenensis, Antiplanes (Rectiplanes) sanctiioannis, Astarte (Tridonta) borealis, Astarte aff. undata, Boreoscala angulatosimile, Buccinum sp., Calliostoma sp., Callista brevisiphonata, Cardium (Cerastoderma) cfr. fastosum, Cardium (Fulvia) muticum, Cardium cfr. tristiculum, Chlamys sp., Clinocaridum cf. chikagawaense, Clinocardium fastosum, Conchocele bisecta, Crenella sp., Cryptopecten vesiculosus, Cyclina sp., Dentalium sp., Dosinia (Phacosoma) abyssicola, Dosinia (Phacosoma) japonica, Epitonium angulatosimile, Glycymeris yessoensis, Glycymeris yessoensis yamasakii, Limopsis tokaiensis, Lora candida, Lora kagana?, Lora yanamii, Lunatia pila, Mactra sachalinensis, Lucinoma annulata, Macoma oinomikadoi, Macoma tokyoensis, Mactra sulcataria, Mercenaria stimpsoni, Mizuhopecten planicostulatus, Mizuhopecten yessoensis yokoyamae, Modiolus sp., Mohnia yanamii, Natica (Tectonatica) janthostoma, Neptunea cf. iwasoensis, Neptunea lyrata, Neptunea nikkoensis (= Neptunea cfr. intersculpta), Nucula tokyoensis, Nuculana (Thestyleda) yokoyamai, Pandorella wardiana, Panomya beringiana, Paphia sp., Pecten (Notovola) albicans, Pecten (Patinopecten) kurosawensis, Pecten (Patinopecten) aff. tokyoensis, Pecten (Patinopecten) yessoensis, Portlandia sp., Propebela sp., Rexithaerus sectior, Sanguinolaria (Nuttalia) olivacea, Sanguinolaria (Nuttalia) violacea?, Serripes groenlandicus, Serripes yokoyamai, Spirotropis (Antiplanes) perversa, Tectonatica janthostomoides, Tectonatica russa, Tellina nitidula, Teras ustus, Thyasira nipponica, Tugarium extus, Turritella (Haustator) fortilirata saishuensis, Turritella (Neohaustator) saishuensis motidukii, Umbonium akitana, Umbonium (Sachium) suchiense, Xenophora cfr. exuta, Yabepecten tokunagai, Yoldia (Cnesterium) notabilis
- Fossils (Foraminifera): Ammonia cf. beccarii, Ammonia japonica, Brizarina robusta, Buccella frigida, Bulimina marginata, Cassidulina norcrossi, Cribroelephidium yabei, Cribrononion clavatum, Globigerina spp., Globorotalia inflata praeinflata, Islandiella japonica, Islandiella margareta, Neogloboquadrina asanoi, Quinqueloculina spp.
- Fossils (Radiolarians): Cenosphaera sp., Cromyodruppa concentrica, Cyrtocapsella tetrapera, Flustrella camerina, Flustrella cf. flustrella, Heliodicus sp., Larnacantha elliptica, Larnacantha polyacantha?, Lgchnocanium nipponicum, Melittosphaera sp., Sethocyrtis japonica, Spireuma circularis, Spongodiscus sp., Stylosphaera sp., Thecosphaera japonica
- Nakano and Tsuchiya (1992) Geology of the Chokaisan and Fukura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 138p. (in Japanese with English abstract 7p.)
- Tsuchiya (1989) Geology of the Osawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 6p.)
- Tsuchiya et al. (1984) Geology of the Tsuruoka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 77p. (in Japanese with English abstract 5p.)
- Ikebe et al. (1979) Geology of the Sakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 42p. (in Japanese with English abstract 3p.)