Torrente Meduna sample 2: Aquitanian, Italy
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Ostreida
- Gryphaeidae
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Neopycnodonte navicularis
(Brocchi 1814)
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1 specimen | ||||||
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys praescabriuscula
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8 specimens | ||||||
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Bivalvia
- Cardiida
- Solecurtidae
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Azorinus chamasolen
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3 specimens | ||||||
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Bivalvia
- Cardiida
- Veneridae
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Callista chione
(Linnaeus 1758)
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1 specimen | ||||||
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Paphia vetula
(Basterot 1825)
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2 specimens | ||||||
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Bivalvia
- Cardiida
- Mactridae
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Lutraria lutraria
(Linnaeus 1767)
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2 specimens | ||||||
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Gastropoda
- Turritellidae
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Protoma cathedralis
(Brongniart 1856)
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2 specimens | ||||||
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Turritella terebralis
Lamarck 1799
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5 specimens | ||||||
| see common names | |||||||
Geography
| Country: | Italy | State/province: | Pordenone | County: | Friuli |
| Coordinates: | 46.2° North, 12.8° East (view map) | ||||
| Paleocoordinates: | 45.0° North, 12.0° East | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Aquitanian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Aquitanian | ||
| Age range of interval: | 23.03000 - 20.44000 m.y. ago |
Stratigraphy
| Formation: | Preplans Sandstone | ||||
| Local section: | Torrente Meduna | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Miocene Torento-Meduna sequence unconformably overlies the Eocene Clauzetto Flysch (Flysch di Clauzetto) and is composed of Preplans Sandstone, Zouf marl, Rugo Mizza Sandstone, San Martino Calcarenite, Torrente Meduna Siltstone, Maraldi Sandstone, Bier Puddingstone, and Montello Conglomerate. total thickness of the Preplans Sandstopne does not exceed 115 m. | |||||
Lithology and environment
| Primary lithology: | fine,medium,pebbly,gray sandstone |
| Includes fossils? | Y |
| Lithology description: Preplans Sandstone is "made up of medium to fine-grained, dark-grey sandstone, coarsening upward, including small pebbles sparse or concentarted in layers. The base is formed by a transgression breccia over 1 m thick. Its topmost part consists of layers of coarse sandstone with abundant glauconite. | |
| Environment: | offshore |
| Geology comments: "Based opn an absence of age-diagnostic fossils, the formation was interpreted to be Aquitanian in age due to its stratigraphic position". | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | bulk,field collection |
| Collection size: | 24 individuals |
| Rock censused: | 30 cm3 (volume) |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Based on single bulk samples, about 30 cubic centimetres each. Grain size data also provided. | |
| Taxonomic list comments:In enterers opinion the taxonomic list is representative of molluscan taxa, however no non-mollusca taxa are detailed. | |
Metadata
| Also known as: | Chlamys praescabiuscula community sample 2 | ||
| Database number: | 37351 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-03-13 07:15:58 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-03-13 07:15:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 10020. | M.P. Bernasconi and E. Robba. 1993. Molluscan palaeoecology and sedimentological features: an integrated appraoch from the Miocene Meduna section, northern Italy. Palaeogeography, Palaeoclimatology, Palaeoecology 100:267-290 [A. Miller/A. Hendy/A. Hendy] |