Addar section, bed 82 [Taboulouart Fm]: Late/Upper Hauterivian, Morocco
collected by Company
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Desmoceratidae
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Abrytusites neumayri
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Cephalopoda
- Ammonitida
- Crioceratitidae
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Pseudothurmannia mortillerti
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Pseudothurmannia pseudomalbosi
(Sarasin and Schöndelmayer 1901)
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| see common names | |||||||
Geography
| Country: | Morocco |
| Coordinates: | 30.6° North, 9.7° West (view map) |
| Paleocoordinates: | 25.3° North, 4.3° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Hauterivian | 10 m.y. bin: | Cretaceous 2 |
| Key time interval: | Late/Upper Hauterivian | ||
| Age range of interval: | 132.60000 - 125.77000 m.y. ago |
Stratigraphy
| Formation: | Taboulouart | ||||
| Local section: | Addar | Local bed: | 4 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Taboulouart Fm, which unconformably overlies the Talmest Fm (Early Cretaceous), and is in turn overlain by the Bouzergoun Fm (Early Cretaceous). AGE: Late Hauterivian, on the basis of ammonite biostratigraphy; Pseudothurmannia mortilleti biozone. STRATIGRAPHIC POSITION: From bed 82, 4-5 m above base, near base of section.
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Lithology and environment
| Primary lithology: | lithified "limestone" |
| Secondary lithology: | shelly/skeletal lithified marl |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Alternating bioclastic marly limestone (dominant) and marls. LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | carbonate indet. |
| Geology comments: ENVIRONMENT: No detailed environmental reported in text. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collectors: | Company |
| Collection method comments: COLLECTORS: Presumably the authors, principally M. Company. REPOSITORY: University of Granada, Granada, Spain. | |
| Taxonomic list comments:COVERAGE: Exhaustive for ammonites only. Other taxa (bivalves, gastropods, brachiopods, echinoids, serpuloids, ostracods, and benthic forams) are stated to present, but not listed. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-level identifications. | |
Metadata
| Database number: | 82314 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-07-25 20:40:37 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2008-07-25 20:40:36 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27700. | M. Company, J. Sandoval, J. M. Tavera, M. Aoutem, and M. Ettachfini. 2008. Barremian ammonite faunas from the western High Atlas, Morocco - biostratigraphy and palaoebiogeography. Cretaceous Research 29:9-26 [A. Hendy/A. Hendy] |