Hakataramea valley (I40/f177): Duntroonian, New Zealand
collected by R.E. Fordyce, A. Grebneff, C.M. Jones 1988
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Mammalia
- Cetacea
|
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Horopeta umarere n. gen., n. sp.
Tsai and Fordyce 2015
|
1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | New Zealand | State/province: | South Island | County: | South Canterbury |
| Coordinates: | 44.7° South, 170.6° East (view map) | ||||
| Paleocoordinates: | 50.9° South, 174.8° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Duntroonian | ||
| Age range of interval: | 27.30000 - 25.20000 m.y. ago |
Stratigraphy
| Formation: | Kokoamu Greensand | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Steep cliff from the middle Kokoamu Greensand, Duntroonian Stage (in the range 25.2-27.3 Ma; Raine et al. 2012), Chattian, late Oligocene. The exact excavation site of
OU21982 (Fig. 1) is about 1 m above a diffuse but distinctive brachiopod- and pectinid-rich shellbed, which is a distinctive regional marker for the base of the Duntroonian Stage in the lower to middle of the Kokoamu Greensand. | |||||
Lithology and environment
| Primary lithology: | massive,bioturbation,glauconitic poorly lithified calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: Massive bioturbated to slightly bedded, slightly cemented calcareous greensand | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | rare |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | OU | ||
| Collectors: | R.E. Fordyce, A. Grebneff, C.M. Jones | Collection dates: | 1988 |
| Collection method comments: Repository: Geology Museum, University of Otago (OU) | |||
Metadata
| Also known as: | Hurstlea Quarry, Haughs Quarry, Haka Lime | ||
| Database number: | 216917 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | vertebrate |
| Created: | 2020-12-30 21:56:09 | Last modified: | 2020-12-30 21:56:09 |
| Access level: | the public | Released: | 2020-12-30 21:56:09 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 54736. | C.-H. Tsai and R. E. Fordyce. 2015. The Earliest Gulp-Feeding Mysticete (Cetacea: Mysticeti) from the Oligocene of New Zealand. Journal of Mammalian Evolution [M. Uhen/M. Uhen] |