Haboro area: Late/Upper Santonian - Early/Lower Campanian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Mosasauridae
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Taniwhasaurus mikasaensis
(Caldwell et al. 2008)
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| original and current combination Yezosaurus mikasaensis | ||||||||||
| MCM.A600 (disarticulated skull elements including a parietal, left quadrate, left postorbitofrontal, jugal, ectopterygoid, coronoid, and possible left squamosal) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Hokkaido |
| Coordinates: | 44.3° North, 141.9° East (view map) | ||
| Paleocoordinates: | 49.0° North, 130.5° East | ||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Key time interval: | Late/Upper Santonian - Early/Lower Campanian | ||
| Age range of interval: | 86.30000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Upper Yezo | Formation: | Haborogawa | ||
| Stratigraphy comments: Santonian-Campanian boundary interval | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Includes fossils? | Y |
| Lithology description: sandstone concretion eroded free of the surrounding strata | |
| Environment: | offshore |
| Geology comments: the inner-outer shelf | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Temporal resolution: | snapshot |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Taniwhasaurus mikasaensis referred material locality | ||
| Database number: | 115409 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion |
| Modifier: | P. Mannion | ||
| Created: | 2011-09-01 21:20:53 | Last modified: | 2011-09-01 07:28:16 |
| Access level: | the public | Released: | 2011-09-01 21:20:53 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 37364. | M. W. Caldwell, T. Konishi, I. Obata and K. Muramoto. 2008. A new species of Taniwhasaurus (Mosasauridae, Tylosaurinae) from the Upper Santonian-Lower Campanian (Upper Cretaceous) of Hokkaido, Japan. Journal of Vertebrate Paleontology 28(2):339-348 [P. Mannion/P. Mannion] |