Barra los Tanques locality: Late/Upper Triassic, Mexico
Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
| Country: | Mexico | State/province: | Sonora |
| Coordinates: | 30.5° North, 112.8° West (view map) | ||
| Paleocoordinates: | 11.5° North, 54.3° West |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| 10 m.y. bin: | Triassic 3-4 | ||
| Key time interval: | Late/Upper Triassic | ||
| Age range of interval: | 237.00000 - 201.40000 m.y. ago |
Stratigraphy
| Geological group: | El Antimonio | Formation: | Rio Asunción |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | lithified grainstone |
| Secondary lithology: | lithified rudstone |
| Lithology description: At Barra los Tanques, a precise biostratigraphic framework has not been established yet. The shortly exposed section (ca 29 m) is predominantly composed of limestones with terrigenous material including sponge-coral biostromes and patch-reefs with algae, comparable to those at Sierra del Álamo. Intercalated in the succession are lumachelle beds, and carbonate-cemented siltstones to fine sandstones (Heerwagen & Martini 2018). | |
| Environment: | sand shoal |
Taphonomy
| Modes of preservation: | body,original aragonite,replaced with calcite |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | all macrofossils |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 234365 | ||
| Authorizer: | W. Kiessling | Enterer: | T. Jujihara | Research group: | marine invertebrate |
| Created: | 2024-04-05 17:07:42 | Last modified: | 2024-04-05 17:07:42 |
| Access level: | the public | Released: | 2024-04-05 17:07:42 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 87972. | I. I. Bucur, S. Rigaud, N. Del Piero, A. Fucelli, E. Heerwagen, C. Peybernes, G. Peyrotty, C. Verard, J. Chablais and R. Martini. 2020. Upper Triassic calcareous algae from the Panthalassa Ocean. Rivista Italiana di Paleontologia e Stratigrafia 126(2):499-540 [W. Kiessling/T. Jujihara] |