485 ft. above base: Trempealeauan, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Asaphida
- Nileidae
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Symphysurina brevispicata
Hintze 1953
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Trilobita
- Olenida
- Olenidae
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Jujuyaspis keideli
Kobayashi 1936
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Highgatella cordilleri
(Lochman 1964)
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| Lochman 1938 | ||||||||||
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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| coquinite | ||||||||||
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Rhynchonellata
- Pentamerida
- Clarkellidae
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Syntrophina carinifera
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| Ulrich & Cooper 1938 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Texas | County: | McCulloch |
| Coordinates: | 31.0° North, 99.3° West (view map) | ||||
| Paleocoordinates: | 17.5° South, 95.2° West |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| Key time interval: | Trempealeauan | Trilobite zone: | Saukia |
| Age range of interval: | 489.2 - 485.4 m.y. ago |
Stratigraphy
| Geological group: | Moore Hollow | Formation: | Wilberns | Member: | San Saba |
| Local section: | type section | Local bed: | 485 ft | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: bed number is feet above base. Highly variable, has calcitic facies (North) and Dolomitic facies (South) | |||||
Lithology and environment
| Primary lithology: | very fine,dolomitic,glauconitic,shelly/skeletal lithified silty,sandy "limestone" |
| Includes fossils? | Y |
| Lithology description: Interval 470-490ft: alternating intervals of very fine-grained to aphanitic, thin bedded, yellowish-gray and fine grained beds, mostly intraformational conglomerate; dolomite mottles and patches common; silty, silt mostly feldspar both detrital and authigenic; some very fine sand .. in upper 5 feet Bed: limestone-gastropod steinkerns, some trilobite and secondarily enlarged pelmatozoan debris in a microgranular, partly pelleted matrix | |
| Environment: | deep subtidal shelf |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Abundance in sediment: | common |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 216005 | ||
| Authorizer: | M. Patzkowsky | Enterer: | K. Irizarry |
| Modifier: | K. Irizarry | ||
| Created: | 2020-12-02 17:18:45 | Last modified: | 2020-12-02 18:18:57 |
| Access level: | the public | Released: | 2020-12-02 17:18:45 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 74583. | V. E. Barnes and W. C. Bell. 1977. The Moore Hollow Group of Central Texas. Report of Investigation (88)1-169 [M. Patzkowsky/K. Irizarry/M. Uhen] |