Echinodermata, Unit B2, La Chauvinière, Charente-Maritime: Early/Lower Cenomanian, France
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Asteroidea
- Valvatida
- Goniasteridae
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Crateraster sp.
Spencer 1913
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Néraudeau and Breton 1993 | |||||||||
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Metopaster aff. parkinsoni
(Forbes 1848)
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Néraudeau and Breton 1993 | |||||||||
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Caletaster romani
Breton 1988
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Néraudeau and Breton 1993 | |||||||||
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Echinoidea
- Cassiduloida
- Cassidulidae
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Nucleopygus similis
(d'Orbigny 1856)
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5 specimens | |||||||||
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Catopygus columbarius
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27 specimens | |||||||||
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Echinoidea
- Nucleolitidae
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Pygaulus subaequalis
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32 specimens | |||||||||
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Echinoidea
- Holectypoida
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Echinogalerus faba
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109 specimens | |||||||||
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Echinoidea
- Holectypoida
- Holectypidae
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Coenholectypus excisus
(Desor 1847)
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24 specimens | |||||||||
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Echinoidea
- Spatangoida
- Hemiasteridae
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Periaster elatus
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22 specimens | |||||||||
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Echinoidea
- Holasteroida
- Holasteridae
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Holaster suborbicularis
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2 specimens | |||||||||
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Echinoidea
- Phymosomatidae
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Phymosoma cenomanense
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3 specimens | |||||||||
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Echinoidea
- Pseudodiadematidae
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Tetragramma variolare
(Brongniart 1822)
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1 specimen | |||||||||
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Tiaromma michelini
|
1 specimen | |||||||||
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Echinoidea
- Orthopsidae
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Orthopsis granularis
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1 specimen | |||||||||
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Echinoidea
- Arbacioida
- Arbaciidae
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Goniopygus menardi
(Desmarest in Defrance 1925)
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16 specimens | |||||||||
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Echinoidea
- Cidaroida
- Cidaridae
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Balanocidaris dixoni
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| spines | ||||||||||
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Prionocidaris spinosissima
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| spines | ||||||||||
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Stereocidaris vesiculosa
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1 specimen | |||||||||
| spelled with current rank as Temnocidaris (Stereocidaris) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | France | County: | Charente-Maritime |
| Coordinates: | 46.0° North, 0.9° West (view map) | ||
| Paleocoordinates: | 34.7° North, 1.2° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | hand sample |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Early/Lower Cenomanian | ||
| Age range of interval: | 100.50000 - 93.90000 m.y. ago |
Stratigraphy
| Local bed: | Unit B2 |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | glauconitic poorly lithified sandstone |
| Includes fossils? | Y |
| Environment: | deep subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | common |
| Articulated whole bodies: | many |
| Associated major elements: | many |
| Disassociated minor elements: | many |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,surface (in situ),mechanical,field collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 59813 | ||
| Authorizer: | L. Villier | Enterer: | L. Villier |
| Modifier: | L. Villier | Research group: | marine invertebrate |
| Created: | 2006-04-13 08:16:58 | Last modified: | 2006-04-14 04:40:14 |
| Access level: | the public | Released: | 2006-04-13 08:16:58 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17135. | D. Néraudeau and P. Moreau. 1996. Paléoécologie et paléobiogéographie des faunes d'échinides du Cénomanien nord-aquitain (Charente-Maritime, France). Géobios 22(3):293-324 [L. Villier/L. Villier/J. Alroy] |
Secondary references:
| 17136 | D. Néraudeau and G. Breton. 1993. Astérides du Cénomanien de Charente-Maritime (SW France). Géobios 26(1):105-120 [L. Villier/L. Villier/J. Alroy] |