Koyamada, Soma area: Oxfordian - Kimmeridgian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Demospongiae
- Agelasida
- Milleporellidae
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Parastromatopora japonica
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Parastromatopora memorianaumanni
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Parastromatopora kotoi
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Parastromatopora mitodaensis
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Parastromatopora minutissima
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Stromatoporoidea
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Milleporidium somaense
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Milleporidium styliferum
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Anthozoa
- Scleractinia
- Astrocoeniidae
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Astrocoenia sp.
Milne-Edwards and Haime 1848
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= ? Astrocoenia sp.
Milne-Edwards and Haime 1848
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Kiessling 2014 | |||||||||
Anthozoa
- Scleractinia
- Haplaraeidae
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Meandraraea somaensis n. sp.
Eguchi 1951
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Eguchi 1951 | |||||||||
Diplaraea somaensis n. sp.
Eguchi 1951
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Eguchi 1951 | |||||||||
Anthozoa
- Scleractinia
- Eugyridae
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Myriophyllia sp.
d'Orbigny 1849
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Anthozoa
- Scleractinia
- Montlivaltiidae
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Thecosmilia somaensis n. sp.
Eguchi 1951
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Eguchi 1951 | |||||||||
? Montlivaltia sp.
Lamouroux 1821
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Anthozoa
- Scleractinia
- Rhipidogyridae
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? Aplosmilia somaensis n. sp.
Eguchi 1951
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Eguchi 1951 | |||||||||
? Aplosmilia tochikuboensis n. sp.
Mori 1963
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Anthozoa
- Scleractinia
- Heterocoeniidae
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Acanthogyra sp.
Ogilvie 1897
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Anthozoa
- Scleractinia
- Latomeandridae
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Latomeandra somaensis n. sp.
Eguchi 1951
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Eguchi 1951 | |||||||||
recombined as Latiastrea somaensis | ||||||||||
Thecosmilia tosaensis
Eguchi 1951
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synonym of Latomeandra ramosa | ||||||||||
Anthozoa
- Scleractinia
- Stylinidae
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? Latomeandra eguchii n. sp.
Mori 1963
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synonym of Eugyriopsis sinuosa | ||||||||||
Stylina (Convexastrea) somaensis n. sp.
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Enallhelia nipponica
Eguchi 1942
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subsp. somaensis | ||||||||||
? Goniocora sp.
Milne-Edwards and Haime 1851
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Anthozoa
- Scleractinia
- Thamnasteriidae
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Thamnasteria sp.
LeSauvage 1823
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Thamnasteria abukumaensis n. sp.
Mori 1963
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Thamnasteria torinosuensis
Eguchi 1951
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Rhynchonellata
- Terebratulida
- Terebratulidae
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"Terebratula" hataii
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"Terebratula" iwaii
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"Terebratula" sp.
Müller 1776
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see common names |
Geography
Country: | Japan | State/province: | Fukushima |
Coordinates: | 37.7° North, 141.0° East (view map) | ||
Paleocoordinates: | 45.0° North, 144.4° East | ||
Basis of coordinate: | based on nearby landmark | ||
Geographic resolution: | local area |
Time
Period: | Jurassic | Epoch: | Late/Upper Jurassic |
10 m.y. bin: | Jurassic 5 | ||
Key time interval: | Oxfordian - Kimmeridgian | ||
Age range of interval: | 163.50000 - 152.10000 m.y. ago |
Stratigraphy
Geological group: | Somanakamura | Formation: | Nakanosawa | Member: | Koike |
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: upper part of the formation |
Lithology and environment
Primary lithology: | lithified grainstone |
Secondary lithology: | lithified lime mudstone |
Lithology description: dark-gray impure limestones, often with shaly and sandy intercalations, very fossiliferous | |
Environment: | shallow subtidal indet. |
Geology comments: no bioherms or biostromes |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 85574 | ||
Authorizer: | W. Kiessling | Enterer: | U. Merkel, W. Kiessling |
Modifier: | U. Merkel | Research group: | marine invertebrate |
Created: | 2009-01-12 05:13:09 | Last modified: | 2009-01-12 08:11:36 |
Access level: | authorizer only | Released: | 2010-01-08 10:39:56 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
28948. | K. Mori. 1963. Geology and paleontology of the Jurassic Somanakamura Group, Fukushima Prefecture, Japan. The Science Reports of the Tohoku University, Geology 35(1):33-65 [W. Kiessling/U. Merkel/U. Merkel] |
Secondary references:
30709 | M. Eguchi. 1951. Mesozoic hexacorals from Japan. The Science Reports of the Tohoku University, Geology 24:1-96 [W. Kiessling/U. Merkel] | |
52446 | W. Kiessling. 2014. Taxonomic revisions of scleractinian corals. [W. Kiessling/W. Kiessling] |