Stagg Creek: Carnian, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Sphenopteridae
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cf. Sphenopteris sitholeyi
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Cycadopsida
- Cycadales
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Macrotaeniopteris crassinervis
Feistmantel 1877
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| recombined as Taeniopteris crassinervis | ||||||||||
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Cycadopsida
- Cycadales
- Cycadaceae
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Sphenozamites rogersianus
Fontaine 1883
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Pterophyllum braunianum
Göppert 1844
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| recombined as Ctenophyllum braunianum | ||||||||||
| = C. truncatum | ||||||||||
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unclassified
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Macrotaeniopteris magnifolia
(Rogers 1857)
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Ginkgoopsida
- Ginkgoales
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Sphenobaiera striata
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| = Baiera multifida | ||||||||||
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Bennettitales
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Pterophyllum taxinum
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Pterophyllum tenuinervis
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Zamites powellii
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Coniferales
- Podocarpaceae
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Podozamites lanceolatus
(Lindley and Hutton 1840)
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| assoc. w/ Clathropteris and Pterophyllum braunianum | ||||||||||
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Polypodiopsida
- Osmundaceae
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Acrostichites linnaeaefolius
(Bunbury 1847)
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Polypodiopsida
- Cyatheales
- Cyatheaceae
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Cyathoforma carolinensis
(Emmons 1856)
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| = Asterocarpus viginiensis and platyrachis | ||||||||||
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Polypodiopsida
- Gleicheniales
- Matoniaceae
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Phlebopteris cf. smithii
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Polypodiopsida
- Equisetales
- Equisetaceae
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Equisetites rogersii
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Equisetites sp.
Sternberg 1833
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Polypodiopsida
- Equisetales
- Calamitaceae
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Neocalamites cf. delawarensis
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Virginia |
| Coordinates: | 37.8° North, 77.5° West (view map) | ||
| Paleocoordinates: | 2.7° North, 16.0° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | local area |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Carnian | 10 m.y. bin: | Triassic 3 |
| *Period: | Late/Upper Triassic | ||
| *International age/stage: | Early/Lower Carnian - Middle Carnian | ||
| Key time interval: | Carnian | ||
| Age range of interval: | 237.00000 - 227.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Doswell | Member: | Stagg Creek | ||
| Local section: | Stagg Creek | ||||
| Regional section: | Taylorsville | ||||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: unconformably lies over Petersburg Granite (Rider Block) | |||||
Lithology and environment
| Primary lithology: | gray silty "shale" |
| Secondary lithology: | micaceous conglomeratic sandstone |
| Includes fossils? | Y |
| Environment: | fluvial-lacustrine indet. |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some microfossils |
| Collection methods: | selective quarrying,surface (in situ),mechanical,peel or thin section,field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 24111 | ||
| Authorizer: | A. Rees | Enterer: | D. Sunderlin |
| Modifier: | D. Sunderlin | Research group: | paleobotany |
| Created: | 2002-07-31 09:48:53 | Last modified: | 2002-07-31 12:48:54 |
| Access level: | group members | Released: | 2002-07-31 09:48:53 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6820. | PGAP | B. Cornet and P.E. Olsen. 1990. Early to Middle Carnian (Triassic) Flora and Fauna of the Richmond and Taylorsville Basins, Virginia and Maryland, U.S.A. Virginia Museum of Natural History Guidebook (1)1-87 [A. Rees/D. Sunderlin/J. Cassara] |