Funtanazza A2: Aquitanian - Burdigalian, Italy
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Ostreida
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Ostreoidea indet.
(Rafinesque 1815)
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| original and current combination Ostreacea | ||||||||||
| "Ostreids"; 10-50 specimens | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Aequipecten sp.
Fischer 1886
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| "pectinid bivalves, such as Aequipecten"; 51-150 specimens | ||||||||||
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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| "bryozoans" | ||||||||||
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Echinoidea
- Clypeasteroida
- Clypeasteridae
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Clypeaster sp.
Lamarck 1801
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4 specimens | |||||||||
| 2 complete, 2 fragmented tests | ||||||||||
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Echinoidea
- Clypeasteroida
- Fibulariidae
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Echinocyamus sp.
van Phelsum 1774
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2 specimens | |||||||||
| 2 complete | ||||||||||
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Echinoidea
- Echinolampadoida
- Echinolampadidae
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Echinolampas sp.
Gray 1825
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2 specimens | |||||||||
| 1 complete, 11 fragmented tests | ||||||||||
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Hypsoclypus sp.
Pomel 1869
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18 specimens | |||||||||
| synonym of Echinolampas | ||||||||||
| 12 complete, 6 fragmented tests | ||||||||||
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Echinoidea
- Spatangoida
- Schizasteridae
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Schizaster sp.
Agassiz 1835
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12 specimens | |||||||||
| 7 complete, 5 fragmented tests | ||||||||||
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Echinoidea
- Spatangoida
- Brissidae
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Trachypatagus sp.
Pomel 1869
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2 specimens | |||||||||
| 1 complete, 1 fragmented test | ||||||||||
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Echinoidea
- Spatangoida
- Loveniidae
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Lovenia sp.
Desor 1847
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12 specimens | |||||||||
| 9 complete, 3 fragmented tests | ||||||||||
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Echinoidea
- Spatangoida
- Spatangidae
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Spatangus sp.
Gray 1825
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83 specimens | |||||||||
| 31 complete, 52 fragmented tests | ||||||||||
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Echinoidea
- Camarodonta
- Temnopleuridae
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Genocidaris sp.
Agassiz 1869
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8 specimens | |||||||||
| 8 complete | ||||||||||
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Echinoidea
- Camarodonta
- Echinidae
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Tripneustes sp.
Agassiz 1841
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12 specimens | |||||||||
| 1 complete, 11 fragmented tests | ||||||||||
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Echinoidea
- Cidaroida
- Cidaridae
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Prionocidaris sp.
Agassiz 1863
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4 specimens | |||||||||
| 4 fragmented spines | ||||||||||
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Echinoidea
- Cidaroida
- Psychocidaridae
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Tylocidaris (Sardocidaris) sp.
(Lambert 1907)
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2 specimens | |||||||||
| 2 fragmented spines | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Italy | State/province: | Sardinia |
| Coordinates: | 39.6° North, 8.5° East (view map) | ||
| Paleocoordinates: | 43.1° North, 2.2° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Aquitanian - Burdigalian | ||
| Age range of interval: | 23.03000 - 15.98000 m.y. ago | ||
| Age estimate: | 21.3 ± .3 Ma (Sr isotope)22.3 ± .3 to 20.3 ± .2 Ma (Sr isotope) |
Stratigraphy
| Local section: | Funtanazza | Local bed: | A1 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The marine sedimentary sequence at Funtanazza, containing the echinoid assemblages studied here, is a ca. 80 m-thick siliciclastic succession (Fig. 2)." "The studied section belongs to Unit E of" Units A to E of Assorgia et al. (1992) and "and approximately corresponds to the section D-D’ described by Assorgia et al. (1992)." "Radiometric dating using the 87Sr/86Sr ratio provided an age between 22.3 ± 0.3 Ma and 20.3 ± 0.2 Ma (Aquitanian to Early Burdigalian) for the succession (Barbieri et al., 1997)." | |||||
Lithology and environment
| Primary lithology: | bioturbation,fine sandstone | ||
| Includes fossils? | Y | ||
| Lithology description: "The echinoid assemblage occurs within an approximately 2 m-thick,well sorted, strongly bioturbated fine-grained sandstone deposit (Figs. 4 and 5)." | |||
| Environment: | shoreface | Tectonic setting: | pull-apart basin |
| Geology comments: Funtanazza Graben. "[I]nner sublittoral sandy environment with moderate energy." "secondary hardgrounds and bryozoan and seagrass patches [can] be inferred." | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | random |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | some |
| Fragmentation: | occasional |
| Bioerosion: | occasional |
| Encrustation: | occasional |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Bulk collections | |
| Taxonomic list comments:Collecting focused on echinoids | |
Metadata
| Database number: | 187424 | ||
| Authorizer: | P. Novack-Gottshall | Enterer: | P. Novack-Gottshall |
| Modifier: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 2017-07-27 13:51:12 | Last modified: | 2017-07-27 14:38:24 |
| Access level: | the public | Released: | 2017-07-27 13:51:12 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 62886. | A. Mancosu and J. H. Nebelsick. 2016. Echinoid assemblages from the early Miocene of Funtanazza (Sardinia): A tool for reconstructing depositional environments along a shelf gradient. Palaeogeography, Palaeoclimatology, Palaeoecology 454:139-160 [P. Novack-Gottshall/P. Novack-Gottshall] |
Secondary references:
| 32986 | P. M. Kier. 1966. Cassiduloids. In R. C. Moore (ed.), Treatise on Invertebrate Paleontology, Part U. Echinodermata. 3 (2). Geological Society of America and University of Kansas Press, Boulder and Lawrence U492-U523 [L. Villier/L. Villier/P. Novack-Gottshall] |