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Obata locality 3, Sorachi Subprefecture, Hokkaidō Prefecture, Japan

Lat/Long (Decimal)43.1667,141.833
Co-ordinates Derivationestimated from map
Given LocationHokkaido, Japan
Mindat.org Region (for given coordinates)Sorachi Subprefecture, Hokkaidō Prefecture, Japan

Collections

CollectionReferenceStratigraphic NameCommentsLithologyAge
Obata locality 4a, Loc. IK-MK20Obata I., Hasegawa Y., et al (1972)not reported85.8 - 83.5 Ma
Late/Upper Cretaceous
Obata locality 4bObata I., Hasegawa Y., et al (1972)not reported85.8 - 83.5 Ma
Late/Upper Cretaceous
Obata locality 6, loc. IK 3013hObata I., Hasegawa Y., et al (1972)not reported93.5 - 89.3 Ma
Late/Upper Cretaceous
Obata locality 5, loc. IK 1040Obata I., Hasegawa Y., et al (1972)not reported99.6 - 93.5 Ma
Late/Upper Cretaceous
Obata locality 3, Loc. IK. M4-PIIKellner A. W. A., Costa F. R., et al (2016)Yezo - Mikasa"limestone"100.5 - 89.8 Ma
Late/Upper Cretaceous

Recorded Fossils

Accepted NameHierarchyAge
Pteranodontidae
family
Animalia : Chordata : Reptilia : Pterosauria : Pteranodontidae100.5 - 89.8 Ma
Late/Upper Cretaceous
Elasmosaurus sp.
genus
Animalia : Chordata : Reptilia : Elasmosauridae : Elasmosaurus85.8 - 83.5 Ma
Late/Upper Cretaceous
Polyptychodon interruptus
species
Animalia : Chordata : Reptilia : Pliosauridae : Polyptychodon : Polyptychodon interruptus99.6 - 93.5 Ma
Late/Upper Cretaceous
Inoceramus sp.
genus
Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus85.8 - 83.5 Ma
Late/Upper Cretaceous
Inoceramus (Actinoceramus) concentricus
species
Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Actinoceramus : Inoceramus (Actinoceramus) concentricus99.6 - 93.5 Ma
Late/Upper Cretaceous
Propeamussium sp.
genus
Animalia : Mollusca : Bivalvia : Pectinida : Propeamussiidae : Propeamussium85.8 - 83.5 Ma
Late/Upper Cretaceous
Calycoceras (Calycoceras) naviculare
species
Animalia : Mollusca : Cephalopoda : Ammonitida : Acanthoceratidae : Calycoceras : Calycoceras (Calycoceras) naviculare99.6 - 93.5 Ma
Late/Upper Cretaceous
Sciponoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonitida : Baculitidae : Sciponoceras93.5 - 89.3 Ma
Late/Upper Cretaceous
Prionocyclus sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonitida : Collignoniceratidae : Prionocyclus93.5 - 89.3 Ma
Late/Upper Cretaceous
Reesidites minimus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Collignoniceratidae : Reesidites : Reesidites minimus93.5 - 89.3 Ma
Late/Upper Cretaceous
Subprionocyclus normalis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Collignoniceratidae : Subprionocyclus : Subprionocyclus normalis93.5 - 89.3 Ma
Late/Upper Cretaceous
Damesites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Desmoceratidae : Damesites85.8 - 83.5 Ma
Late/Upper Cretaceous
Desmoceras (Pseudouhligella) japonicum
species
Animalia : Mollusca : Cephalopoda : Ammonitida : Desmoceratidae : Desmoceras : Desmoceras (Pseudouhligella) japonicum99.6 - 93.5 Ma
Late/Upper Cretaceous
Polyptychoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Diplomoceratidae : Polyptychoceras100.5 - 89.8 Ma
Late/Upper Cretaceous
Gaudryceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Gaudryceratidae : Gaudryceras85.8 - 83.5 Ma
Late/Upper Cretaceous
Gaudryceras (Gaudryceras) denseplicatum
species
Animalia : Mollusca : Cephalopoda : Ammonitida : Gaudryceratidae : Gaudryceras : Gaudryceras (Gaudryceras) denseplicatum100.5 - 89.8 Ma
Late/Upper Cretaceous
Yokoyamaoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kossmaticeratidae : Yokoyamaoceras85.8 - 83.5 Ma
Late/Upper Cretaceous
Didymoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nostoceratidae : Didymoceras100.5 - 89.8 Ma
Late/Upper Cretaceous
Nostoceratidae
family
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nostoceratidae100.5 - 89.8 Ma
Late/Upper Cretaceous
Neopuzosia sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Neopuzosia85.8 - 83.5 Ma
Late/Upper Cretaceous
Neophylloceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Phylloceratidae : Neophylloceras85.8 - 83.5 Ma
Late/Upper Cretaceous
Brunonia sp.
genus
Animalia : Mollusca : Gastropoda : Littorinimorpha : Carinariidae : Brunonia85.8 - 83.5 Ma
Late/Upper Cretaceous

References

Obata I., Hasegawa Y., et al (1972) Preliminary report on the Cretaceous reptile fossils from Hokkaido, Memoirs of the National Science Museum 5, 213-222
Kellner A. W. A., Costa F. R., et al (2016) Redescription of the first pterosaur remains from Japan: the largest flying reptile from Asia, Historical Biology 28, 304-309
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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