USGS 17445, Yonabaru: Pliocene, Japan
collected by Raymond A. Saplis
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Terebratulida
- Frenulinidae
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Jolonica macneili
Cooper 1957
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Gastropoda
- Eucyclidae
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Bathybembix sp.
Crosse 1892
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MacNeil 1960 | |||||||||
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica maxima
(Philippi 1849)
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MacNeil 1960 | |||||||||
| recombined as Architectonica (Architectonica) maxima | ||||||||||
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Gastropoda
- Campanilidae
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Trochocerithium cf. excelsum
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MacNeil 1960 | |||||||||
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Gastropoda
- Naticidae
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Natica cf. vitellus
(Linnaeus 1758)
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Costellariidae
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? Makiyamaia ? coreanica
(Adams and Reeve 1850)
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MacNeil 1960 | |||||||||
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Makiyamaia coreanica
(Adams and Reeve 1850)
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MacNeil 1960 | |||||||||
| subspecies: subdelivius | ||||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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Hindsia (Nihonophos) whitmorei
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Granulifusus niponicus
(Smith 1879)
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Cancellariidae
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Cancellaria yonabaruensis n. sp.
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Ancillariidae
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Ancilla (Baryspira) cf. albocallosa
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MacNeil 1960 | |||||||||
| spelled with current rank as Amalda (Baryspira) | ||||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Micantapex striatotuberculata
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MacNeil 1960 | |||||||||
| species name is listed as: striato-tuberculata | ||||||||||
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Gemmula aff. asukana
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Conidae
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Conus cf. yabei
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MacNeil 1960 | |||||||||
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Conus cf. litteratus
Linnaeus 1758
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MacNeil 1960 | |||||||||
| recombined as Conus (Lithoconus) litteratus | ||||||||||
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Gastropoda
- Neogastropoda
- Drilliidae
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? Pseudoinquisitor cf. pulchra
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Cochlespiridae
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Nihonia shimajiriensis n. sp.
MacNeil 1960
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Volutidae
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Fulgoraria (Saotomea) delicata
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MacNeil 1960 | |||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Chicoreus sp.
Monfort 1810
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MacNeil 1960 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Okinawa |
| Coordinates: | 26.2° North, 127.7° East (view map) | ||
| Paleocoordinates: | 26.5° North, 127.2° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| *Period: | Middle Tertiary - Late/Upper Tertiary | *Epoch: | Late/Upper Miocene |
| Key time interval: | Pliocene | ||
| Age range of interval: | 5.33300 - 2.58000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Shimajiri | Formation: | Yonabaru | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Fossiliferous bed at the base of low hill. Yonabaru Mudstone (now a formation) spans calcareous nannofossil zones CN10b to middle of CN12b and planktonic foram zones PL1 to PL4 (Ujiié, 1994), indicating an age of primarily Pliocene (but ranging from latest Messinian to possibly early Gelasian). | |||||
Lithology and environment
| Primary lithology: | gray,blue poorly lithified silty,sandy claystone |
| Lithology description: Bluish to gray silty to sandy clay, commonly with hackly to conchiodial fracture and fine dark-colored laminated to massive sand, weathering brown to gray, and which in places contains large lime indurated concretions of sand. Most macrofossils found in interclated clay/sand beds. Poorly lithified based on description and fossil preservation. | |
| Environment: | offshore |
| Geology comments: The author estimates that the Yonabaru Clay member was deposted in <100 to 300 fathoms of water. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collectors: | Raymond A. Saplis |
Metadata
| Database number: | 26654 | ||
| Authorizer: | A. Miller, M. Clapham | Enterer: | C. Ferguson, M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2002-10-21 13:33:25 | Last modified: | 2017-12-03 12:30:14 |
| Access level: | the public | Released: | 2002-10-21 13:33:25 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 39467. | G. A. Cooper. 1957. Tertiary and Pleistocene Brachiopods of Okinawa, Ryukyu Islands. United States Geological Survey Professional Paper 314(A):1-20 [A. Hendy/A. Hendy] |
Secondary references:
| 7337 | F. S. MacNeil. 1960. Tertiary and Quaternary Gastropoda of Okinawa: A comparison of the late Miocene, Pliocene, and Pleistocene Gastropoda of Okinawa with related faunas of East Asia together with a resume of the geological setting of the fossiliferous deposits. United States Geological Survey Professional Paper 339:1-148 [A. Miller/C. Ferguson/P. Wagner] |