Umgazana River [Umgazana Fm]: Late/Upper Valanginian, South Africa
collected by McLachlan et al.
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Onchiopsis sp.
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites sp.
Lamarck 1799
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Cephalopoda
- Ammonitida
- Himantoceratidae
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Umgazaniceras thieuloyi
Klinger and Kennedy 1979
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12 specimens | ||||||
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Cephalopoda
- Ammonitida
- Bochianitidae
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Bochianites cf. renevieri
Ooster 1860
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1 specimen | ||||||
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Cephalopoda
- Ammonitida
- Neocomitidae
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Neohoploceras sp.
Spath 1939
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1 specimen | ||||||
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Gastropoda
- Pseudomelaniidae
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Pseudomelania sp.
Pictet and Campiche 1862
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Bivalvia
- Lucinida
- Mactromyidae
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Thetironia sp.
Stoliczka 1870
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Bivalvia
- Trigoniida
- Trigoniidae
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Trigonia sp.
Bruguière 1789
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Cycadopsida
- Cycadales
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Nilssonia sp.
(Brongniart 1825)
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| misspelling Nilsonia | |||||||
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Bennettitales
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Otozamites sp.
Braun 1843
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Dictyozamites sp.
Oldham 1863
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Polypodiopsida
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Cladophlebis sp.
Brongniart 1849
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| see common names | |||||||
Geography
| Country: | South Africa |
| Coordinates: | 31.7° South, 29.4° East (view map) |
| Paleocoordinates: | 45.6° South, 6.3° West |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Late/Upper Valanginian | ||
| Age range of interval: | 139.80000 - 132.60000 m.y. ago |
Stratigraphy
| Formation: | Umgazana | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Umgazana Fm, for which lithostratigraphic relationships are unknown. AGE: Early Valanginian, on the basis of ammonite and palynological biostratigraphy. STRATIGRAPHIC POSITION: Unknown position within unit. | |||||
Lithology and environment
| Primary lithology: | lenticular,shelly/skeletal lithified "limestone" |
| Secondary lithology: | green lithified sandy conglomerate |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Darkish green conglomerates with some bands of coarse sandstone and grit, with occasional fossiliferous limestone lentils. LITHIFICATION: Lithified, assumed on the basis of facies descriptions from regionally dominant lithology, and figures from subsequent publications (e.g. Kennedy and Kinger 1977). | |
| Environment: | coastal indet. |
| Geology comments: ENVIRONMENT: Shallow marine siliciclastic setting. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | McLachlan et al. |
| Collection method comments: COLLECTORS: Collected by McLachlan et al. REPOSITORY: SAM. | |
| Taxonomic list comments:COVERAGE: Includes ammonites, bivalves, and some plants NOMENCLATURE: An authoritative publication for ammonites, with modern nomenclature. Not all taxa identified to species-resolution. | |
Metadata
| Database number: | 82627 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-07-30 13:09:42 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2008-07-30 13:09:42 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27805. | H. C. Klinger and W. J. Kennedy. 1979. Cretaceous faunas from Southern Africa. Lower Cretaceous ammonites, including a new bochianitid genus, from Umgazana, Transkei. Annals of the South African Museum 78(2):11-19 [A. Hendy/A. Hendy] |