Mexilhoeira, Cascais area, level 8b: Valanginian, Portugal
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Lituolida
- Lituolidae
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Textulariidae indet.
Ehrenberg 1838
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Trocholinidae
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Trocholina elongata
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Trocholina alpina
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Tubothalamea
- Miliolida
- Miliolidae
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Miliolidae indet.
Ehrenberg 1839
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Nodosariata
- Vaginulinida
- Vaginulinidae
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Lenticulina sp.
Lamarck 1804
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Rhynchonellata
- Rhynchonellida
- Rhynchonellidae
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Terebratula acuta
Sowerby 1816
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recombined as Homoeorhynchia acuta | ||||||||||
Bivalvia
- Ostreida
- Ostreidae
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Lopha rectangularis
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Bivalvia
- Pectinida
- Neitheidae
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Neithea atava
(Roemer 1839)
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Bivalvia
- Cardiida
- Cardiidae
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Cardium sp.
Linnaeus 1758
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Gastropoda
- Heterostropha
- Nerineidae
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Nerinea guinchoensis
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Gastropoda
- Purpurinidae
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Leviathania leviathan
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Gastropoda
- Naticidae
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Natica mexilhoeirensis
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Crinoidea
- Millericrinida
- Apiocrinitidae
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Apiocrinus sp.
Miller 1821
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nomen vanum belonging to Apiocrinites | ||||||||||
Echinoidea
- Cidaroida
- Cidaridae
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Cidaris maresi
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spines | ||||||||||
Phyllacanthus cf. salviensis
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spines | ||||||||||
Echinoidea
- Salenioida
- Saleniidae
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Salenia depressa
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Echinoidea
- Clypeidae
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Pygurus rostratus
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Echinoidea
- Arbacioida
- Arbaciidae
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Goniopygus sp.
Agassiz 1838
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see common names |
Geography
Country: | Portugal |
Coordinates: | 38.7° North, 9.4° West (view map) |
Paleocoordinates: | 32.8° North, 0.7° East |
Basis of coordinate: | based on nearby landmark |
Geographic resolution: | hand sample |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
Key time interval: | Valanginian | ||
Age range of interval: | 139.80000 - 132.90000 m.y. ago |
Stratigraphy
Local section: | Mexilhoeira | Local bed: | 8b | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: 4 m |
Lithology and environment
Primary lithology: | wavy/flaser/lenticular bedding,yellow lithified argillaceous "limestone" |
Includes fossils? | Y |
Environment: | coastal indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Collection excludes: | difficult macrofossils |
Collection methods: | bulk,surface (in situ),field collection |
Reason for describing collection: | general faunal/floral analysis |
Metadata
Database number: | 65673 | ||
Authorizer: | L. Villier | Enterer: | L. Villier | Research group: | marine invertebrate |
Created: | 2006-09-24 08:25:37 | Last modified: | 2006-09-24 11:25:37 |
Access level: | the public | Released: | 2006-09-24 08:25:36 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
18719. | J. Rey. 1972. Recherches géologiques sur le Crétacé inférieur de l'Estremadura (Portugal). Serviços Geologicos de Portugal 21:1-477 [L. Villier/L. Villier] |