75-8 La Mina San Martin: Carnian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cycadopsida
- Cycadales
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Taeniopteris elegans
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10 %-specimens | ||||||
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Cycadopsida
- Cycadales
- Cycadaceae
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Ctenophyllum braunianum
(Göppert 1844)
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5 %-specimens | ||||||
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unclassified
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Macrotaeniopteris sp.
Schimper 1869
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5 %-specimens | ||||||
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Bennettitales
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? Pterophyllum sp.
Brongniart 1828
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5 %-specimens | ||||||
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Zamites cf. truncatus
Zeiller 1903
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10 %-specimens | ||||||
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Coniferales
- Podocarpaceae
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Elatocladus spp.
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25 %-specimens | ||||||
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Polypodiopsida
- Marattiales
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Asterotheca sp.
Presl 1845
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25 %-specimens | ||||||
| see common names | |||||||
Geography
| Country: | Mexico | State/province: | Sonora |
| Coordinates: | 28.5° North, 110.2° West (view map) | ||
| Paleocoordinates: | 3.5° North, 47.2° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Carnian | 10 m.y. bin: | Triassic 3 |
| *Period: | Late/Upper Triassic | ||
| Key time interval: | Carnian | ||
| Age range of interval: | 237.00000 - 227.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Barranca | Formation: | Santa Clara | Local bed: | 75-8 |
| Stratigraphic resolution: | bed |
Lithology and environment
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,surface (in situ),mechanical,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Same as Zambrano-Garcia and Weber (1985) 513. | |
Metadata
| Database number: | 24073 | ||
| Authorizer: | A. Rees | Enterer: | D. Sunderlin |
| Modifier: | D. Sunderlin | Research group: | paleobotany |
| Created: | 2002-07-29 13:56:05 | Last modified: | 2002-07-30 12:08:01 |
| Access level: | group members | Released: | 2002-07-29 13:56:05 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6811. | PGAP | R. Weber, R. Trjo-Cruz, A. Tores-Romo and A. Garcia-Padilla. 1980. Hipotesis de trabajo acerca de la paleoecologia de comunidades de la tafoflora Santa Clara del Triasico Tardio de Sonora. Univ. Nal. Auton. Mexico, Inst. Geologia, Revista 4(2):138-154 [A. Rees/D. Sunderlin/D. Sunderlin] |