Funtanazza A7 (Miocene to of Italy)

Where: Sardinia, Italy (39.6° N, 8.5° E: paleocoordinates 43.1° N, 2.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Aquitanian to Aquitanian (23.0 - 16.0 Ma)

• 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)."

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; massive, bioturbated, fine-grained, medium sandstone

• Funtanazza Graben. "outer sublittoral sandy habitat with low to moderate-energy conditions (Fig. 10, A7), sporadically affected by sediment movement by storms.."
• "The echinoid assemblage occurs within an approximately metre thick deposit consisting of fine- to medium-grained, well sorted sandstones which lies above a metre thick barren, laminated fine to medium-grained sandstone. The echinoid-bearing deposit appears massive and bioturbated by cylindrical burrows up to 1 cm in diameter."

Size classes: macrofossils, mesofossils

Collection methods: Bulk collections

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 187429: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 27.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collecting focused on echinoids
Bivalvia
 Ostreiformii -
Pectinida indet. Gray 1854 scallop
"Pectinids"; 51-150 specimens
Echinoidea
 Cidaroida -
Tretocidaris (Stylocidaris) sp. pencil urchin
2 complete, 9 fragmented tests, 60 fragmented spines
 Spatangoida - Schizasteridae
Schizaster sp. Agassiz 1835 heart urchin
1 complete
 Spatangoida - Loveniidae
Lovenia sp. Desor 1847 heart urchin
1 complete
 Spatangoida - Spatangidae
Spatangus sp. Gray 1825 heart urchin
1 complete, 3 fragmented tests
 Spatangoida - Brissidae
Brissopsis sp. Agassiz 1840 heart urchin
7 complete