Near San Juancito: Late Valanginian, Honduras
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Olcostephanidae
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Olcostephanus spp.
Neumayr 1875
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| see common names | |||||||
Geography
| Country: | Honduras |
| Coordinates: | 14.2° North, 87.1° West (view map) |
| Paleocoordinates: | 9.5° North, 43.8° West (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Late Valanginian | ||
| Age range of interval: | 139.8 - 132.6 m.y. ago |
Stratigraphy
| Formation: | Cantarranas | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Probably Late Valanginian, but early Hauterivian cannot be completely ruled out" | |||||
Lithology and environment
| Primary lithology: | gray lithified sandstone |
| Secondary lithology: | lithified "shale" |
| Lithology description: Gray, quartzose sandstone alternating with beds of gray and/or black shale | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | cast |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: University of Texas | |
Metadata
| Database number: | 169241 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2015-05-11 23:03:27 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-05-11 23:03:27 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 55266. | M. Gordon and K. Young. 1993. Bathonian and Valanginian fossils from Honduras. Geobios 26(Suppl 1):175-179 [M. Clapham/M. Clapham] |