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List of fossils in Gunma prefecture
A list of fossils reported from Gunma prefecture, Kanto region, Honshu island, Japan.
Photographs of outcrops and fossils in Gunma prefecture
- Paleozoic
- Conodonts
- Permian (298.9-252.17 Ma)
- Cartilaginous fish
- Helicoprion sp.
- Helicoprion bessonowi
- Trilobites
- Brachiopods
- Echinoids
- Crinoids
- Corals
- Bryozoans
- Fusulinids
- Triassic (252.17-201.3 Ma)
- Bivalves
- Eumorphotis multiformis
- Jurassic (201.3-145.0 Ma)
- Cycads
- Otozamites fujimotoi
- Ferns
- Cladophlebis haiburnensis
- Cladophlebis raciborskii
- Equisetites iwamuroensis
- Thaumatopteris elongata
- Cretaceous (145.0-66.0 Ma)
- Dinosaurs
- family Ornithomimidae, Sanchuryu, (Bones)
- Nautiloids
- Cymatoceras sp.
- Ammonoids
- Pseudohaploceras japonicum
- Bivalves
- Costocyrena otsukai
- Hayamina sp.
- Inoceramus sp.
- Nippononaia ryosekiana
- Pterotrigonia (Pterotrigonia) hokkaidoana => Pterotrigonia hokkaidoana
- Rastellum sp. => Arctostrea sp.
- Rastellum (Arctostrea) carinata => Arctostrea carinata
- Tetoria sanchuensis
- Trigonia sp.
- Cycads
- Zamiophyllum sp.
- Zamites sp.
- Ferns
- Cladophlebis sp.
- Onychiopsis elongata
- Trace fossils
- superorder Dinosauria, Dinosaur (Footprints)
- Small animals
- Miocene (23.03-5.33 Ma)
- Mammals
- Joumocetus shimizui
- superfamily Odontoceti, Toothed whale
- Paleoparadoxia sp.
- Fishes, (Scale)
- Sharks, (Teeth)
- Sea birds
- Echinoids
- Bivalves
- Acharax tokunagai => Acharax johnsoni
- Cardium shiobarense => Laevicardium shiobarense
- Chlamys kaneharai => Mimachlamys kaneharai
- Clinocardium sp.
- Conchocele sp.
- Crassostrea gigas => Magallana gigas, Pacific oyster
- Dosinia japonica
- Glycymeris sp., Bittersweet clam
- Lucinoma sp.
- Macoma sp.
- Mercenaria sp.
- Mercenaria sigaramiensis
- Mya sp.
- Mytilus giganteus
- Mytilus tichanovitchi
- Panopea japonica, Japanese geoduck
- Patinopecten (Kotorapecten) yamasakii => Mizuhopecten yamasakii
- Pecten sp.
- Solen sp.
- Venus sp.
- Scaphopods
- Gastropods
- Neptunea sp.
- Turritella sp.
- Flowering plants (Trunks)
- subfamily Bambusoideae, Bamboo, (Leaves)
- Fagus stuxbergii, (Leaves)
- Phragmites sp., (Leaves)
- Populus sp., Poplar, (Leaves)
- Salix sp., Willow, (Leaves)
- Conifers
- Metasequoia sp., (Leaves)
- Crustaceans
- infraorder Brachyura, Crabs
- Foraminifera
- Cibicides sp.
- Cyclammina sp.
- Cyclammina japonica => Cyclammina cancellata
- Fursenkoina sp.
- Globobulimina sp.
- Globorotalia peripheroronda
- Lepidocyclina sp.
- Melonis sp.
- Nodosaria sp.
- Praeorbulina glomerosa subsp. circularis => Praeorbulina circularis
- Praeorbulina transitoria => Praeorbulina curva
- Sponges
- Makiyama sp.
- Trace fossils
- Teredo sp., Shipworm, (Tubes)
- Pipe rocks
- Miocene-Pliocene
- Fishes
- Scomber sp., (Entire structure)
- family Pleuronectidae, Righteye flounder
- Sardinops sp.
- Crustaceans
- order Decapoda, Decapod
- Bivalves
- Plants
- Quaternary
- Mammals
- family Cervidae, Deer
- Palaeoloxodon naumanni, Naumann's elephant, (Molars)
- Petaurista sp.
- order Primates, Primate
- order Rodentia, Rodent
- Sus sp., Pig
- Pleistocene (2.58- 0.01Ma)
- Mammals
- family Cervidae, Deer, (Horns)
- Ursus arctos, Brown bear
- Flowering plants (Trunks, Leaves)
- Alnus sp., Alder, (Pollen)
- Betula sp., Birch, (Pollen)
- Carpinus sp., Hornbeam, (Pollen)
- Corylus sp., Hazel, (Pollen)
- Fagus sp., Beech, (Pollen)
- Juglans sp., Walnut tree, (Pollen)
- family Poaceae, Grass, (Pollen)
- Quercus sp., Oak, (Pollen)
- Tilia sp., (Pollen)
- Conifers
- Cryptomeria sp., (Pollen)
- Picea sp., Spruce, (Pollen)
- Pinus sp., Pine, (Pollen)
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- Diatoms
- Amphora sp.
- Cymbella sp.
- Diploneis sp.
- Eunotia sp.
- Gomphonema sp.
- Navicula sp.
- Pinnularia sp.
- Investigation in progress
- Radiolarians