Funtanazza A1: Aquitanian - Burdigalian, Italy

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Spatangoida - Schizasteridae
Schizaster sp. Agassiz 1835
3 specimens
2 complete , 1 fragmented test
Echinoidea - Spatangoida - Loveniidae
Lovenia sp. Desor 1847
2 specimens
2 complete
Echinoidea - Spatangoida - Spatangidae
Spatangus thieryi
73 specimens
24 complete, 49 fragmented tests
Echinoidea - Spatangoida - Brissidae
Brissopsis sp. Agassiz 1840
3 specimens
2 complete , 1 fragmented test
Bivalvia - Pectinida - Pectinidae
Aequipecten sp. Fischer 1886
"pectinid bivalves, such as Aequipecten"; 51-150 specimens
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:22.3 ± .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:fine sandstone
Includes fossils?Y
Lithology description: "The echinoid assemblage occurs within an approximately 1.5 m thick, well sorted, fine-grained sandstone deposit."
Environment:shoreface Tectonic setting:pull-apart basin
Geology comments: Funtanazza Graben. "The depositional environment of this assemblage is inferred as outer sublittoral with very fine sandy substrate and low to moderate water energy (Fig. 10, A1), sporadically affected by high energy events."
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Spatial orientation:random
Preservation of anatomical detail:good
Abundance in sediment:common
Articulated whole bodies:some
Size sorting:very poor
Fragmentation: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:187423
Authorizer:P. Novack-Gottshall Enterer:P. Novack-Gottshall
Modifier:P. Novack-Gottshall Research group:marine invertebrate
Created:2017-07-27 13:49:21 Last modified:2017-07-27 14:38:27
Access level:the public Released:2017-07-27 13:49:21
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]