Also known as Locality 8. Yokokurayama, Ochi, Kochi Prefecture, Shikoku Island
Where: Shikoku, Japan (33.5° N, 133.2° E: paleocoordinates 33.5° N, 133.2° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Fukata Formation, Ludlow (427.4 - 423.0 Ma)
• Comprise "Ys 14" and "Ys 15" from the "G3 stage" of lower Ludlovian. Was Yokokura formation, but Stocker et al. (2019) give this as the Fukata formation.
• group of beds-level stratigraphic resolution
Environment/lithology: reef, buildup or bioherm; lithified reef rocks
Size class: macrofossils
Collected by M. Hirata, J. Hamada
Primary reference: T. Kobayashi and T. Hamada. 1974. Silurian trilobites of Japan in comparison with Asian, Pacific and other faunas. Palaeontological Society of Japan Special Papers 18:1-155 [M. Hopkins/M. Hopkins]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 188690: authorized by Melanie Hopkins, entered by Melanie Hopkins on 13.09.2017, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
| Trilobita | |
Bumastus indet., Bumastus (Bumastus) glomerosus n. sp., Bumastus (Bumastus) subquadratus n. sp., Bumastus (Bumastella) spiculus, Bumastus (Bumastella) aspera, Bumastus (Bumastella) bipunctatus, Bumastus aff. barriensis
Bumastus indet. Murchison 1839 trilobite
Bumastus (Bumastus) glomerosus n. sp. Kobayashi and Hamada 1974 trilobite
Bumastus (Bumastus) subquadratus n. sp. Kobayashi and Hamada 1974 trilobite
Bumastus (Bumastella) spiculus Kobayashi and Hamada 1974 trilobite
Bumastus (Bumastella) aspera Kobayashi and Hamada 1974 trilobite
Bumastus (Bumastella) bipunctatus Kobayashi and Hamada 1974 trilobite
Bumastus aff. barriensis Murchison 1839 trilobite | |
Microscutellum sp., Microscutellum primigenium, Japonoscutellum japonicum, Illaenoscutellum platiceps, Tosacephalus fungiformis n. sp., Kosovopeltis angusticostata
Microscutellum sp. Snajdr 1960 trilobite
Microscutellum primigenium Kobayashi and Hamada 1974 trilobite
Japonoscutellum japonicum Kobayashi and Hamada 1965 trilobite
Illaenoscutellum platiceps Kobayashi and Hamada 1974 trilobite
Tosacephalus fungiformis n. sp. Kobayashi and Hamada 1974 trilobite
Kosovopeltis angusticostata Kobayashi and Hamada 1974 trilobite | |
|
Apolichas truncatus Kobayashi and Hamada 1974 trilobite | |
Sphaerexochus hiratai n. sp., Sphaerexochus planirachis n. sp., Cerauroides elongatus n. sp., Cerauroides orientalis
Sphaerexochus planirachis n. sp. Kobayashi and Hamada 1974 trilobite
Cerauroides elongatus n. sp. Kobayashi and Hamada 1974 trilobite
Cerauroides orientalis Kobayashi and Hamada 1973 trilobite | |
|
Encrinuridae indet. Angelin 1854 trilobite
Encrinurus yokokurensis n. sp. Kobayashi and Hamada 1974 trilobite
Encrinurus mamelon n. sp. Kobayashi and Hamada 1974 trilobite | |
|
Phacops metacernaspis trilobite | |
"Proetus (Proetus) subovalis n. sp." = Coniproetus subovalis, "Decoroproetus granulatus n. sp." = Gomiites granulatus, "Cyphoproetus latiaxis" = Gomiites latiaxis, Interproetus mizobuchii n. sp., "Proetus (Gerastos) sugiharensis n. sp." = Hedstroemia sugiharensis
"Proetus (Proetus) subovalis n. sp." = Coniproetus subovalis Kobayashi and Hamada 1974 trilobite
"Decoroproetus granulatus n. sp." = Gomiites granulatus Kobayashi and Hamada 1974 trilobite
"Cyphoproetus latiaxis" = Gomiites latiaxis Kobayashi and Hamada 1986 trilobite
Interproetus mizobuchii n. sp. Stocker et al. 2019 trilobite
"Proetus (Gerastos) sugiharensis n. sp." = Hedstroemia sugiharensis Kobayashi and Hamada 1974 trilobite | |
"Proetus (Bohemiproetus) magnicerviculus" = Eremiproetus magnicerviculus, "Proetus (Gerastos) subcarinatus" = Eremiproetus subcarinatus
"Proetus (Bohemiproetus) magnicerviculus" = Eremiproetus magnicerviculus Kobayashi and Hamada 1974 trilobite
"Proetus (Gerastos) subcarinatus" = Eremiproetus subcarinatus Kobayashi and Hamada 1974 trilobite | |