Miharanoro NSM PCL 15-53-1, Tojo Town, Hiroshima Prefecture: Asselian, Japan
collected by I. Nishikawa

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Goniatitida - Bisatoceratidae
Ehiro et al. 2014 2 specimens
(2 measurements)
Cephalopoda - Goniatitida - Somoholitidae
Ehiro et al. 2014 4 specimens
(3 measurements)
Cephalopoda - Goniatitida - Marathonitidae
Ehiro et al. 2014 4 specimens
(3 measurements)
Ehiro and Ozawa 2020
Cephalopoda - Goniatitida - Agathiceratidae
Ehiro et al. 2014 14 specimens
(14 measurements)
Cephalopoda - Goniatitida - Adrianitidae
Ehiro et al. 2014 3 specimens
(2 measurements)
Cephalopoda - Goniatitida - Neoicoceratidae
Ehiro et al. 2014 1 specimen
(1 measurement)
Cephalopoda - Prolecanitida - Pronoritidae
Metapronorites sp. Librovitch 1938
Ehiro et al. 2014 1 specimen
Ehiro et al. 2014 6 specimens
(3 measurements)
Cephalopoda - Bactritida - Parabactritidae
3 specimens
Strophomenata - Productida - Productellidae
Tazawa and Ibaraki 2023
Strophomenata - Productida - Echinoconchidae
Tazawa and Ibaraki 2023
Tazawa and Ibaraki 2023
Strophomenata - Productida - Monticuliferidae
Tazawa and Ibaraki 2023
Tazawa and Ibaraki 2023
Rhynchonellata - Spiriferida - Choristitidae
Choristites sp. Fischer de Waldheim 1825
Tazawa and Ibaraki 2023
Tazawa and Ibaraki 2023
Rhynchonellata - Spiriferida - Martiniidae
Tazawa and Ibaraki 2023
Rhynchonellata - Orthida - Rhipidomellidae
Tazawa and Ibaraki 2023
Rhynchonellata - Orthida - Enteletidae
Tazawa and Ibaraki 2023
Tazawa and Ibaraki 2023
see common names

Geography
Country:Japan
Coordinates: 34.9° North, 133.3° East (view map)
Paleocoordinates:13.9° North, 138.1° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Permian Epoch: Cisuralian
Stage: Asselian 10 m.y. bin: Permian 1
Key time interval: Asselian Foram zone:  Pseudoschwagerina miharanoensis
Age range of interval: 298.9 - 293.52 m.y. ago
Stratigraphy
Formation:Uyamanoro
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:massive,gray lithified "limestone"
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collectors:I. Nishikawa
Collection method comments: Repository: National Science Museum, Tokyo (NSM) and Tohoku University Museum (IGPS)
Taxonomic list comments:Ammonoids illustrated in Hayasaka and Nishikawa, 1962
Metadata
Database number:116014
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2011-09-05 02:51:42 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-09-05 02:51:42
Creative Commons license:CC0
Reference information

Primary reference:
33637. S. Niko, T. Nishida, and T. Hamada. 1993. Aktastioceras nishikawai n sp, a first Permian bactritoid cephalopod from Japan. Journal of Paleontology 67:314-316 [M. Clapham/M. Clapham]

Secondary references:

50560 M. Ehiro, O. Nishikawa, and I. Nishikawa. 2014. Early Permian (Asselian) ammonoids from the Taishaku Limestone, Akiyoshi Belt, southwest Japan. Paleontological Research 18:51-63 [M. Clapham/M. Clapham]
74066 M. Ehiro and T. Ozawa. 2020. Early Asselian (earliest Permian) ammonoids from the Taishaku Limestone, Akiyoshi Belt, Southwest Japan: an Asselian ammonoid fauna of the Mid-Panthalassan Realm. Paleontological Research 24:298-315 [M. Clapham/M. Clapham]
87602 J. I. Tazawa and Y. Ibaraki. 2023. A mixed Boreal-Tethyan-Panthalassan brachiopod fauna from the lower Permian (Asselian) of Miharanoro, Akiyoshi Belt, southwestern Japan. Science Reports, Niigata University (Geology) 38:17-40 [M. Clapham/M. Clapham]