Ashoro: Chattian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Mammalia
- Cetacea
- Aetiocetidae
|
||||||||||
|
Aetiocetidae indet.
Emlong 1966
|
1 specimen | |||||||||
| AMP 9 | ||||||||||
|
= Morawanocetinae indet.
Barnes et al. 1995
|
Tsai and Ando 2016 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Hokkaido |
| Coordinates: | 43.2° North, 143.5° East (view map) | ||
| Paleocoordinates: | 44.5° North, 141.2° East | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Chattian | ||
| Age range of interval: | 27.82 - 23.03 m.y. ago |
Stratigraphy
| Formation: | Morawan | Member: | upper tuffaceous siltstone | ||
| Stratigraphy comments: late Oligocene |
Lithology and environment
| Primary lithology: | tuffaceous siltstone |
| Includes fossils? | Y |
| Environment: | shoreface |
| Geology comments: basinal (siliceous), near shore | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 162501 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | B. Shipps | Research group: | vertebrate |
| Created: | 2014-09-26 15:02:46 | Last modified: | 2017-02-26 15:48:33 |
| Access level: | the public | Released: | 2014-09-26 15:02:46 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 52922. | T. Ando and C. -H. Tsai. 2014. Large aetiocetid implies a wide ranges of inch in early Mysticeti. Society of Vertebrate Paleontology Program and Abstracts 79 [M. Uhen/M. Uhen] |
Secondary references:
| 59774 | C.-H. Tsai and T. Ando. 2016. Niche partitioning in Oligocene toothed mysticetes (Mysticeti: Aetiocetidae). Journal of Mammalian Evolution 23:33-41 [M. Uhen/M. Uhen] |