Iwaizaki, Japan: Wordian - Capitanian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhodophyceae - Solenoporaceae
Solenoporaceae indet. Pia 1927
Parachaetetes sp. Deninger 1906
Kawamura and Machiyama 1995
unclassified
Cyanobacteria indet. Stanier 1973
Cyanophyceae - Aphralysiaceae
Archaeolithoporella sp. Endo 1959
unclassified
Porifera indet. Grant 1836
End reef builders
Anthozoa - Stauriida - Lithostrotionidae
Yatsengia sp. Huang 1932
Anthozoa - Stauriida - Waagenophyllidae
Parawentzelella sp. Fontaine 1961
Waagenophyllum sp. Hayasaka 1924
Anthozoa - Auloporida - Aulocystidae
Sinopora sp. Sokolov 1955
Kawamura and Machiyama 1995
Hydrozoa - Nigriporellidae
Tubiphytes sp. Maslov 1956
unclassified
Bryozoa indet. Ehrenberg 1831
Crinoidea
Crinoidea indet. Miller 1821
see common names

Geography
Country:Japan
Coordinates: 38.9° North, 141.6° East (view map)
Paleocoordinates:4.5° North, 136.4° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Permian Epoch: Guadalupian
Stage: Wordian - Capitanian 10 m.y. bin: Permian 4
*Period:Middle Permian
Key time interval: Wordian - Capitanian
Age range of interval: 266.9 - 259.51 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Iwaizaki Limestone
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: lithified "reef rocks"
Lithology description: Coral reef with substrate of bioclastic grainstone/packstone, core of framestone, bindstone and bafflestone, flank with lensoid bioclastic grainstone and rudstone
Environment:reef, buildup or bioherm
Geology comments: coral reef complex formed on a faulted-bank in an active continental margin.
Taphonomy
Size of fossils:macrofossils
Preservation of anatomical detail:good
Articulated whole bodies:many
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Taxonomic list comments:Incomplete
Metadata
Also known as:Reef 210
Database number:24126
Authorizer:W. Kiessling Enterer:W. Kiessling
Modifier:W. Kiessling Research group:marine invertebrate
Created:2002-08-01 02:45:49 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-08-01 02:45:49
Creative Commons license:CC0
Reference information

Primary reference:

6821. J.-w. Shen and T. Kawamura. 2001. Guadalupian algae-sponge reefs in siliciclastic environments – the reefs at Lengwu (South China) compared with the reef at Iwaizaki (Japan). Facies 45:137-156 [W. Kiessling/W. Kiessling/W. Kiessling]

Secondary references:

9252 T. Kawamura and H. Machiyama. 1995. A Late Permian coral reef complex, South Kitakami Terrane, Japan. Sedimentary Geology 99:135-150 [W. Kiessling/W. Kiessling/W. Kiessling]