Beaver Dam Mountains BM5, Bed 11A: Spathian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
|
||||||||||
Bivalvia indet.
Linnaeus 1758
|
12 individuals | |||||||||
2nd Collection [originally entered as "Bivalvia sp."] | ||||||||||
Bivalvia
- Trigoniida
- Myophoriidae
|
||||||||||
Neoschizodus laevigatus
(Ziethen 1830)
|
Hautmann et al. 2013 | |||||||||
Bivalvia
- Carditida
- Myophoricardiidae
|
||||||||||
Pseudocorbula sp.
Philippi 1898
|
119 specimens | |||||||||
Bivalvia
- Cardiida
- Anthracosiidae
|
||||||||||
Unionites sp.
Wissman 1841
|
2 individuals | |||||||||
2nd Collection | ||||||||||
Bivalvia
- Pholadomyida
- Pholadomyidae
|
||||||||||
Arcomya sp.
Agassiz 1838
|
1 specimen | |||||||||
Bivalvia
- Myalinida
- Myalinidae
|
||||||||||
? Promyalina sp.
Kittl 1903
|
1 individual | |||||||||
Left Valves Counted, 2nd Collection | ||||||||||
? Promyalina informal sp. a
|
1 individual | |||||||||
2nd Collection | ||||||||||
Bivalvia
- Ostreida
- Bakevelliidae
|
||||||||||
Bakevellia cf. exporrecta
(Lepsius 1878)
|
129 individuals | |||||||||
2nd Collection | ||||||||||
Bivalvia
- Pectinida
- Hunanopectinidae
|
||||||||||
Leptochondria informal sp. a
|
2 specimens | |||||||||
2nd Collection | ||||||||||
Leptochondria cf. thaynesiana
(Girty 1927)
|
1 specimen | |||||||||
Bivalvia
- Pectinida
- Aviculopectinidae
|
||||||||||
Eumorphotis ? multiformis
(Bittner 1899)
|
2 specimens | |||||||||
Tentaculita
- Microconchida
|
||||||||||
Microconchus sp.
Murchison 1839
|
1 specimen | |||||||||
= Microconchus utahensis
Zatoń et al. 2013
|
Zatoń et al. 2013 | |||||||||
Rhynchonellata
- Terebratulida
- Gusarellidae
|
||||||||||
Protogusarella smithi
Perry and Chatterton 1979
|
3 specimens | |||||||||
2nd Collection | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Utah | County: | Washington |
Coordinates: | 37.1° North, 113.7° West (view map) | ||||
Paleocoordinates: | 8.0° North, 39.5° West | ||||
Basis of coordinate: | unpublished field data | ||||
Geographic resolution: | small collection |
Time
Period: | Triassic | Epoch: | Early Triassic |
Stage: | Olenekian | 10 m.y. bin: | Triassic 1 |
Key time interval: | Spathian | ||
Age range of interval: | 248.9 - 247.2 m.y. ago |
Stratigraphy
Lithology and environment
Primary lithology: | red lithified "shale" |
Secondary lithology: | red lithified "limestone" |
Includes fossils? | Y |
Lithology description: Poorly exposed red shale with thin dark red bivalve limestone level | |
Environment: | carbonate indet. |
Taphonomy
Modes of preservation: | body,mold/impression |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | paleoecologic analysis |
Metadata
Database number: | 62983 | ||
Authorizer: | A. McGowan, M. Clapham | Enterer: | A. McGowan, M. Clapham |
Modifier: | M. Manojlovic | Research group: | marine invertebrate |
Created: | 2006-08-02 04:45:28 | Last modified: | 2016-10-17 16:50:31 |
Access level: | the public | Released: | 2006-08-02 04:45:28 |
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] |