Virgin Transect V1 Bed 9A: Spathian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Tentaculita
- Microconchida
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? Microconchus sp.
Murchison 1839
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1 individual | |||||||||
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= Microconchus utahensis
Zatoń et al. 2013
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Zatoń et al. 2013 | |||||||||
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Bivalvia
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Bivalvia indet.
Linnaeus 1758
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11 individuals | |||||||||
| Right Valves Counted | ||||||||||
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Bivalvia
- Trigoniida
- Myophoriidae
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Neoschizodus cf. laevigatus
(Ziethen 1830)
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1 specimen | |||||||||
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= ? Heminajas cf. balatonis
Frech 1905
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Hautmann et al. 2013 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Washington |
| Coordinates: | 37.2° North, 113.2° West (view map) | ||||
| Paleocoordinates: | 7.9° North, 39.1° West | ||||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Early/Lower Triassic |
| Stage: | Olenekian | 10 m.y. bin: | Triassic 1 |
| Key time interval: | Spathian | ||
| Age range of interval: | 248.90000 - 247.20000 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | green siltstone |
| Secondary lithology: | shelly/skeletal calcareous grainstone |
| Includes fossils? | Y |
| Lithology description: Green siltstone with occasional layers of small intraclasts (gravel). Basal 20-40 cm calc-arenite with Promyalina shell beds with poor preservation forming rubbly transition to the bed below | |
| Environment: | carbonate indet. |
Taphonomy
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 63037 | ||
| Authorizer: | A. McGowan, M. Clapham | Enterer: | A. McGowan, M. Clapham |
| Modifier: | A. McGowan | Research group: | marine invertebrate |
| Created: | 2006-08-02 07:14:56 | Last modified: | 2006-08-09 05:52:20 |
| Access level: | database members | Released: | 2006-08-02 07:14:56 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 18152. | A. J. McGowan, A. B. Smith, and P. D. Taylor. 2009. Faunal diversity, heterogeneity and body size in the Early Triassic: testing post-extinction paradigms in the Virgin Limestone of Utah, USA. Australian Journal of Earth Sciences 56:859-872 [A. McGowan/A. McGowan/M. Clapham] |
Secondary references:
| 44069 | M. Hautmann, A. B. Smith, A. J. McGowan and H. Bucher. 2013. Bivalves from the Olenekian (Early Triassic) of south-western Utah: systematics and evolutionary significance. Journal of Systematic Palaeontology 11:263-293 [M. Clapham/M. Clapham/M. Clapham] | |
| 44346 | M. Zatoń, P. D. Taylor, and O. Vinn. 2013. Early Triassic (Spathian) post-extinction microconchids from western Pangea. Journal of Paleontology 87:159-165 [M. Clapham/M. Clapham/M. Clapham] |