Where: Japan (38.8° N, 141.6° E)
• Paleocoordinates: 3.8° N, 135.9° E (Wright 2013)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Lepidolina shiraiwensis foram zone, G Member (Iwaizaki Formation), Capitanian (264.3 - 259.5 Ma)
• 8 m thick
• group of beds-level stratigraphic resolution
Environment/lithology: lithified, black limestone
Size classes: mesofossils, microfossils
Preservation: replaced with silica
Collection methods: chemical, acetic,
Primary reference: K. Ishizaki. 1964. Middle Permian ostracodes from the Iwaizaki Limestone, northeast Japan. Science Reports of the Tohoku University. Second Series, Geology 36:139-160 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 109844: authorized by Matthew Clapham, entered by Matthew Clapham on 28.05.2011
Creative Commons license: CC0 (CC0)
Taxonomic list
| Deuteropoda | |
|
Ostracoda indet. Latreille 1802 ostracod | |
| Ostracoda | |
? Cavellina nipponica n. sp.
? Cavellina nipponica n. sp. Ishizaki 1964 ostracod | |
"Tubulibairdia venusta" = Microcheilinella venusta
"Tubulibairdia venusta" = Microcheilinella venusta Chen 1958 ostracod | |
Bairdiacypris deloi, Spinobairdia sp., Bairdia eucurvia n. sp., Bairdia nagaiwensis, Bairdia cf. oklahomaensis, Bairdia trianguliformis, Ceratobairdia ambigua n. sp.
Bairdiacypris deloi Bradfield 1935 ostracod
Spinobairdia sp. ostracod
Bairdia eucurvia n. sp. Ishizaki 1964 ostracod
Bairdia nagaiwensis Ishizaki 1963 ostracod
Bairdia cf. oklahomaensis Harlton 1927 ostracod
Bairdia trianguliformis Chen 1958 ostracod
Ceratobairdia ambigua n. sp. Ishizaki 1964 ostracod | |
Roundyella neopapillosa n. sp.
Roundyella neopapillosa n. sp. Ishizaki 1964 ostracod | |
Hollinella elliptica n. sp.
Hollinella elliptica n. sp. Ishizaki 1964 ostracod | |
Kirkbya centrotumida n. sp., Kirkbya multicresta n. sp., Kirkbya subnipponica n. sp., Kirkbya magniforma n. sp., Kirkbya atolla n. sp., Kirkbya subquadriforma n. sp., Aurikirkbya formula n. sp., Aurikirkbya subkellettae n. sp., Ectodemites globosa n. sp.
Kirkbya centrotumida n. sp. Ishizaki 1964 ostracod
Kirkbya multicresta n. sp. Ishizaki 1964 ostracod
Kirkbya subnipponica n. sp. Ishizaki 1964 ostracod
Kirkbya magniforma n. sp. Ishizaki 1964 ostracod
Kirkbya atolla n. sp. Ishizaki 1964 ostracod
Kirkbya subquadriforma n. sp. Ishizaki 1964 ostracod
Aurikirkbya formula n. sp. Ishizaki 1964 ostracod
Aurikirkbya subkellettae n. sp. Ishizaki 1964 ostracod
Ectodemites globosa n. sp. Ishizaki 1964 ostracod | |
|
Polytylites kitanipponica n. sp. Ishizaki 1964 ostracod
Amphissites centronotus Ulrich and Bassler 1906 ostracod | |