Loc. 47B, Ambanjabe, Mitsinjo-Namakia: Late Aptian, Madagascar
collected by Collignon 1953
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Phylloceratida
- Phylloceratidae
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Phylloceras micipsa
(Coquand 1880)
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Cephalopoda
- Ammonitida
- Lytoceratidae
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Thysanolytoceras aff. vicinum
(Douvillé 1916)
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Cephalopoda
- Ammonitida
- Desmoceratidae
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Uhligella boussaci
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unclassified
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Valderosella getulina
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Cephalopoda
- Ammonitida
- Douvilleiceratidae
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Cheloniceras cornueli
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Cephalopoda
- Ammonitida
- Anisoceratidae
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Metahamites parcetuberculatus
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Cephalopoda
- Ammonitida
- Ancyloceratidae
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Ancyloceras aff. varians
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| see common names | |||||||
Geography
| Country: | Madagascar |
| Coordinates: | 15.9° South, 45.9° East (view map) |
| Paleocoordinates: | 39.5° South, 26.7° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| Key time interval: | Late Aptian | Ammonoid zone: | Aconeceras nisus - Melchiorites melchioris |
| Age range of interval: | 119.5 - 113 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: Late Albian; Aconeceras nisus and Melchiorites mechioris zone. STRATIGRAPHIC POSITION: From unknown position within local section. | |||||
Lithology and environment
| Primary lithology: | lithified not reported |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Not stated in text. LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils | ||
| Collection methods: | surface (in situ),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | Collignon | Collection dates: | 1953 |
| Collection method comments: COLLECTOR: M. Collignon, 1953. REPOSITORY: Not stated in text. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for Ammonoidea. Other groups may be present, but aren't reported in this publication. NOMENCLATURE: Somewhat antiquated publication, but authoritative, and with species-resolution identifications. | |||
Metadata
| Database number: | 83997 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2008-09-14 21:13:43 | Last modified: | 2019-05-09 14:27:57 |
| Access level: | the public | Released: | 2008-09-14 21:13:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 28142. | M. Collignon. 1962. Atlas des fossiles caractéristiques de Madagascar (Ammonites). Fascicule IX (Aptien). Service Géologique Tananarive 1-64 [A. Hendy/A. Hendy/L. Bulot] |